diff --git a/_includes/layouts/base.njk b/_includes/layouts/base.njk
index 4467fd8..65fd74b 100644
--- a/_includes/layouts/base.njk
+++ b/_includes/layouts/base.njk
@@ -136,7 +136,10 @@
   {# CSS is synchronous (Leaflet requires CSS before map init); JS is non-deferred (inline init script runs synchronously in body) #}
   {% if leafletMap %}
   <link rel="stylesheet" href="/css/leaflet.css?v={{ '/css/leaflet.css' | hash }}">
+  <link rel="stylesheet" href="/css/markercluster.css?v={{ '/css/markercluster.css' | hash }}">
+  <link rel="stylesheet" href="/css/markercluster.default.css?v={{ '/css/markercluster.default.css' | hash }}">
   <script src="/js/vendor/leaflet.js?v={{ '/js/vendor/leaflet.js' | hash }}"></script>
+  <script src="/js/vendor/leaflet.markercluster.js?v={{ '/js/vendor/leaflet.markercluster.js' | hash }}"></script>
   {% endif %}
 </head>
 <body{% if pagefindIgnore %} data-pagefind-ignore="all"{% endif %}>
diff --git a/been.njk b/been.njk
index 73ece27..182da46 100644
--- a/been.njk
+++ b/been.njk
@@ -43,6 +43,7 @@ leafletMap: true
       function escHtml(s) {
         return String(s).replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
       }
+      var cluster = L.markerClusterGroup({ maxClusterRadius: 40 });
       var markers = checkinPoints.map(function(p) {
         var safeName = escHtml(p.name);
         var safeUrl = (p.url && p.url.indexOf('https://') === 0) ? p.url : '';
@@ -51,9 +52,9 @@ leafletMap: true
           : safeName;
         return L.marker([p.lat, p.lng]).bindPopup(popup);
       });
-      markers.forEach(function(m) { m.addTo(map); });
-      var group = L.featureGroup(markers);
-      map.fitBounds(group.getBounds().pad(0.2), { maxZoom: 13 });
+      markers.forEach(function(m) { cluster.addLayer(m); });
+      map.addLayer(cluster);
+      map.fitBounds(cluster.getBounds().pad(0.2), { maxZoom: 13 });
     })();
   </script>
   {% endif %}
diff --git a/css/markercluster.css b/css/markercluster.css
new file mode 100644
index 0000000..c60d71b
--- /dev/null
+++ b/css/markercluster.css
@@ -0,0 +1,14 @@
+.leaflet-cluster-anim .leaflet-marker-icon, .leaflet-cluster-anim .leaflet-marker-shadow {
+	-webkit-transition: -webkit-transform 0.3s ease-out, opacity 0.3s ease-in;
+	-moz-transition: -moz-transform 0.3s ease-out, opacity 0.3s ease-in;
+	-o-transition: -o-transform 0.3s ease-out, opacity 0.3s ease-in;
+	transition: transform 0.3s ease-out, opacity 0.3s ease-in;
+}
+
+.leaflet-cluster-spider-leg {
+	/* stroke-dashoffset (duration and function) should match with leaflet-marker-icon transform in order to track it exactly */
+	-webkit-transition: -webkit-stroke-dashoffset 0.3s ease-out, -webkit-stroke-opacity 0.3s ease-in;
+	-moz-transition: -moz-stroke-dashoffset 0.3s ease-out, -moz-stroke-opacity 0.3s ease-in;
+	-o-transition: -o-stroke-dashoffset 0.3s ease-out, -o-stroke-opacity 0.3s ease-in;
+	transition: stroke-dashoffset 0.3s ease-out, stroke-opacity 0.3s ease-in;
+}
diff --git a/css/markercluster.default.css b/css/markercluster.default.css
new file mode 100644
index 0000000..bbc8c9f
--- /dev/null
+++ b/css/markercluster.default.css
@@ -0,0 +1,60 @@
+.marker-cluster-small {
+	background-color: rgba(181, 226, 140, 0.6);
+	}
+.marker-cluster-small div {
+	background-color: rgba(110, 204, 57, 0.6);
+	}
+
+.marker-cluster-medium {
+	background-color: rgba(241, 211, 87, 0.6);
+	}
+.marker-cluster-medium div {
+	background-color: rgba(240, 194, 12, 0.6);
+	}
+
+.marker-cluster-large {
+	background-color: rgba(253, 156, 115, 0.6);
+	}
+.marker-cluster-large div {
+	background-color: rgba(241, 128, 23, 0.6);
+	}
+
+	/* IE 6-8 fallback colors */
+.leaflet-oldie .marker-cluster-small {
+	background-color: rgb(181, 226, 140);
+	}
+.leaflet-oldie .marker-cluster-small div {
+	background-color: rgb(110, 204, 57);
+	}
+
+.leaflet-oldie .marker-cluster-medium {
+	background-color: rgb(241, 211, 87);
+	}
+.leaflet-oldie .marker-cluster-medium div {
+	background-color: rgb(240, 194, 12);
+	}
+
+.leaflet-oldie .marker-cluster-large {
+	background-color: rgb(253, 156, 115);
+	}
+.leaflet-oldie .marker-cluster-large div {
+	background-color: rgb(241, 128, 23);
+}
+
+.marker-cluster {
+	background-clip: padding-box;
+	border-radius: 20px;
+	}
+.marker-cluster div {
+	width: 30px;
+	height: 30px;
+	margin-left: 5px;
+	margin-top: 5px;
+
+	text-align: center;
+	border-radius: 15px;
+	font: 12px "Helvetica Neue", Arial, Helvetica, sans-serif;
+	}
+.marker-cluster span {
+	line-height: 30px;
+	}
\ No newline at end of file
diff --git a/js/vendor/leaflet.markercluster.js b/js/vendor/leaflet.markercluster.js
new file mode 100644
index 0000000..66fe516
--- /dev/null
+++ b/js/vendor/leaflet.markercluster.js
@@ -0,0 +1,2 @@
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):t(((e=e||self).Leaflet=e.Leaflet||{},e.Leaflet.markercluster={}))}(this,function(e){"use strict";var t=L.MarkerClusterGroup=L.FeatureGroup.extend({options:{maxClusterRadius:80,iconCreateFunction:null,clusterPane:L.Marker.prototype.options.pane,spiderfyOnEveryZoom:!1,spiderfyOnMaxZoom:!0,showCoverageOnHover:!0,zoomToBoundsOnClick:!0,singleMarkerMode:!1,disableClusteringAtZoom:null,removeOutsideVisibleBounds:!0,animate:!0,animateAddingMarkers:!1,spiderfyShapePositions:null,spiderfyDistanceMultiplier:1,spiderLegPolylineOptions:{weight:1.5,color:"#222",opacity:.5},chunkedLoading:!1,chunkInterval:200,chunkDelay:50,chunkProgress:null,polygonOptions:{}},initialize:function(e){L.Util.setOptions(this,e),this.options.iconCreateFunction||(this.options.iconCreateFunction=this._defaultIconCreateFunction),this._featureGroup=L.featureGroup(),this._featureGroup.addEventParent(this),this._nonPointGroup=L.featureGroup(),this._nonPointGroup.addEventParent(this),this._inZoomAnimation=0,this._needsClustering=[],this._needsRemoving=[],this._currentShownBounds=null,this._queue=[],this._childMarkerEventHandlers={dragstart:this._childMarkerDragStart,move:this._childMarkerMoved,dragend:this._childMarkerDragEnd};var t=L.DomUtil.TRANSITION&&this.options.animate;L.extend(this,t?this._withAnimation:this._noAnimation),this._markerCluster=t?L.MarkerCluster:L.MarkerClusterNonAnimated},addLayer:function(e){if(e instanceof L.LayerGroup)return this.addLayers([e]);if(!e.getLatLng)return this._nonPointGroup.addLayer(e),this.fire("layeradd",{layer:e}),this;if(!this._map)return this._needsClustering.push(e),this.fire("layeradd",{layer:e}),this;if(this.hasLayer(e))return this;this._unspiderfy&&this._unspiderfy(),this._addLayer(e,this._maxZoom),this.fire("layeradd",{layer:e}),this._topClusterLevel._recalculateBounds(),this._refreshClustersIcons();var t=e,i=this._zoom;if(e.__parent)for(;t.__parent._zoom>=i;)t=t.__parent;return this._currentShownBounds.contains(t.getLatLng())&&(this.options.animateAddingMarkers?this._animationAddLayer(e,t):this._animationAddLayerNonAnimated(e,t)),this},removeLayer:function(e){return e instanceof L.LayerGroup?this.removeLayers([e]):(e.getLatLng?this._map?e.__parent&&(this._unspiderfy&&(this._unspiderfy(),this._unspiderfyLayer(e)),this._removeLayer(e,!0),this.fire("layerremove",{layer:e}),this._topClusterLevel._recalculateBounds(),this._refreshClustersIcons(),e.off(this._childMarkerEventHandlers,this),this._featureGroup.hasLayer(e)&&(this._featureGroup.removeLayer(e),e.clusterShow&&e.clusterShow())):(!this._arraySplice(this._needsClustering,e)&&this.hasLayer(e)&&this._needsRemoving.push({layer:e,latlng:e._latlng}),this.fire("layerremove",{layer:e})):(this._nonPointGroup.removeLayer(e),this.fire("layerremove",{layer:e})),this)},addLayers:function(n,s){if(!L.Util.isArray(n))return this.addLayer(n);var o,a=this._featureGroup,h=this._nonPointGroup,l=this.options.chunkedLoading,u=this.options.chunkInterval,_=this.options.chunkProgress,d=n.length,p=0,c=!0;if(this._map){var f=(new Date).getTime(),m=L.bind(function(){var e=(new Date).getTime();for(this._map&&this._unspiderfy&&this._unspiderfy();p<d;p++){if(l&&p%200==0){var t=(new Date).getTime()-e;if(u<t)break}if((o=n[p])instanceof L.LayerGroup)c&&(n=n.slice(),c=!1),this._extractNonGroupLayers(o,n),d=n.length;else if(o.getLatLng){if(!this.hasLayer(o)&&(this._addLayer(o,this._maxZoom),s||this.fire("layeradd",{layer:o}),o.__parent&&2===o.__parent.getChildCount())){var i=o.__parent.getAllChildMarkers(),r=i[0]===o?i[1]:i[0];a.removeLayer(r)}}else h.addLayer(o),s||this.fire("layeradd",{layer:o})}_&&_(p,d,(new Date).getTime()-f),p===d?(this._topClusterLevel._recalculateBounds(),this._refreshClustersIcons(),this._topClusterLevel._recursivelyAddChildrenToMap(null,this._zoom,this._currentShownBounds)):setTimeout(m,this.options.chunkDelay)},this);m()}else for(var e=this._needsClustering;p<d;p++)(o=n[p])instanceof L.LayerGroup?(c&&(n=n.slice(),c=!1),this._extractNonGroupLayers(o,n),d=n.length):o.getLatLng?this.hasLayer(o)||e.push(o):h.addLayer(o);return this},removeLayers:function(e){var t,i,r=e.length,n=this._featureGroup,s=this._nonPointGroup,o=!0;if(!this._map){for(t=0;t<r;t++)(i=e[t])instanceof L.LayerGroup?(o&&(e=e.slice(),o=!1),this._extractNonGroupLayers(i,e),r=e.length):(this._arraySplice(this._needsClustering,i),s.removeLayer(i),this.hasLayer(i)&&this._needsRemoving.push({layer:i,latlng:i._latlng}),this.fire("layerremove",{layer:i}));return this}if(this._unspiderfy){this._unspiderfy();var a=e.slice(),h=r;for(t=0;t<h;t++)(i=a[t])instanceof L.LayerGroup?(this._extractNonGroupLayers(i,a),h=a.length):this._unspiderfyLayer(i)}for(t=0;t<r;t++)(i=e[t])instanceof L.LayerGroup?(o&&(e=e.slice(),o=!1),this._extractNonGroupLayers(i,e),r=e.length):i.__parent?(this._removeLayer(i,!0,!0),this.fire("layerremove",{layer:i}),n.hasLayer(i)&&(n.removeLayer(i),i.clusterShow&&i.clusterShow())):(s.removeLayer(i),this.fire("layerremove",{layer:i}));return this._topClusterLevel._recalculateBounds(),this._refreshClustersIcons(),this._topClusterLevel._recursivelyAddChildrenToMap(null,this._zoom,this._currentShownBounds),this},clearLayers:function(){return this._map||(this._needsClustering=[],this._needsRemoving=[],delete this._gridClusters,delete this._gridUnclustered),this._noanimationUnspiderfy&&this._noanimationUnspiderfy(),this._featureGroup.clearLayers(),this._nonPointGroup.clearLayers(),this.eachLayer(function(e){e.off(this._childMarkerEventHandlers,this),delete e.__parent},this),this._map&&this._generateInitialClusters(),this},getBounds:function(){var e=new L.LatLngBounds;this._topClusterLevel&&e.extend(this._topClusterLevel._bounds);for(var t=this._needsClustering.length-1;0<=t;t--)e.extend(this._needsClustering[t].getLatLng());return e.extend(this._nonPointGroup.getBounds()),e},eachLayer:function(e,t){var i,r,n,s=this._needsClustering.slice(),o=this._needsRemoving;for(this._topClusterLevel&&this._topClusterLevel.getAllChildMarkers(s),r=s.length-1;0<=r;r--){for(i=!0,n=o.length-1;0<=n;n--)if(o[n].layer===s[r]){i=!1;break}i&&e.call(t,s[r])}this._nonPointGroup.eachLayer(e,t)},getLayers:function(){var t=[];return this.eachLayer(function(e){t.push(e)}),t},getLayer:function(t){var i=null;return t=parseInt(t,10),this.eachLayer(function(e){L.stamp(e)===t&&(i=e)}),i},hasLayer:function(e){if(!e)return!1;var t,i=this._needsClustering;for(t=i.length-1;0<=t;t--)if(i[t]===e)return!0;for(t=(i=this._needsRemoving).length-1;0<=t;t--)if(i[t].layer===e)return!1;return!(!e.__parent||e.__parent._group!==this)||this._nonPointGroup.hasLayer(e)},zoomToShowLayer:function(e,t){var i=this._map;"function"!=typeof t&&(t=function(){});var r=function(){!i.hasLayer(e)&&!i.hasLayer(e.__parent)||this._inZoomAnimation||(this._map.off("moveend",r,this),this.off("animationend",r,this),i.hasLayer(e)?t():e.__parent._icon&&(this.once("spiderfied",t,this),e.__parent.spiderfy()))};e._icon&&this._map.getBounds().contains(e.getLatLng())?t():e.__parent._zoom<Math.round(this._map._zoom)?(this._map.on("moveend",r,this),this._map.panTo(e.getLatLng())):(this._map.on("moveend",r,this),this.on("animationend",r,this),e.__parent.zoomToBounds())},onAdd:function(e){var t,i,r;if(this._map=e,!isFinite(this._map.getMaxZoom()))throw"Map has no maxZoom specified";for(this._featureGroup.addTo(e),this._nonPointGroup.addTo(e),this._gridClusters||this._generateInitialClusters(),this._maxLat=e.options.crs.projection.MAX_LATITUDE,t=0,i=this._needsRemoving.length;t<i;t++)(r=this._needsRemoving[t]).newlatlng=r.layer._latlng,r.layer._latlng=r.latlng;for(t=0,i=this._needsRemoving.length;t<i;t++)r=this._needsRemoving[t],this._removeLayer(r.layer,!0),r.layer._latlng=r.newlatlng;this._needsRemoving=[],this._zoom=Math.round(this._map._zoom),this._currentShownBounds=this._getExpandedVisibleBounds(),this._map.on("zoomend",this._zoomEnd,this),this._map.on("moveend",this._moveEnd,this),this._spiderfierOnAdd&&this._spiderfierOnAdd(),this._bindEvents(),i=this._needsClustering,this._needsClustering=[],this.addLayers(i,!0)},onRemove:function(e){e.off("zoomend",this._zoomEnd,this),e.off("moveend",this._moveEnd,this),this._unbindEvents(),this._map._mapPane.className=this._map._mapPane.className.replace(" leaflet-cluster-anim",""),this._spiderfierOnRemove&&this._spiderfierOnRemove(),delete this._maxLat,this._hideCoverage(),this._featureGroup.remove(),this._nonPointGroup.remove(),this._featureGroup.clearLayers(),this._map=null},getVisibleParent:function(e){for(var t=e;t&&!t._icon;)t=t.__parent;return t||null},_arraySplice:function(e,t){for(var i=e.length-1;0<=i;i--)if(e[i]===t)return e.splice(i,1),!0},_removeFromGridUnclustered:function(e,t){for(var i=this._map,r=this._gridUnclustered,n=Math.floor(this._map.getMinZoom());n<=t&&r[t].removeObject(e,i.project(e.getLatLng(),t));t--);},_childMarkerDragStart:function(e){e.target.__dragStart=e.target._latlng},_childMarkerMoved:function(e){if(!this._ignoreMove&&!e.target.__dragStart){var t=e.target._popup&&e.target._popup.isOpen();this._moveChild(e.target,e.oldLatLng,e.latlng),t&&e.target.openPopup()}},_moveChild:function(e,t,i){e._latlng=t,this.removeLayer(e),e._latlng=i,this.addLayer(e)},_childMarkerDragEnd:function(e){var t=e.target.__dragStart;delete e.target.__dragStart,t&&this._moveChild(e.target,t,e.target._latlng)},_removeLayer:function(e,t,i){var r=this._gridClusters,n=this._gridUnclustered,s=this._featureGroup,o=this._map,a=Math.floor(this._map.getMinZoom());t&&this._removeFromGridUnclustered(e,this._maxZoom);var h,l=e.__parent,u=l._markers;for(this._arraySplice(u,e);l&&(l._childCount--,l._boundsNeedUpdate=!0,!(l._zoom<a));)t&&l._childCount<=1?(h=l._markers[0]===e?l._markers[1]:l._markers[0],r[l._zoom].removeObject(l,o.project(l._cLatLng,l._zoom)),n[l._zoom].addObject(h,o.project(h.getLatLng(),l._zoom)),this._arraySplice(l.__parent._childClusters,l),l.__parent._markers.push(h),h.__parent=l.__parent,l._icon&&(s.removeLayer(l),i||s.addLayer(h))):l._iconNeedsUpdate=!0,l=l.__parent;delete e.__parent},_isOrIsParent:function(e,t){for(;t;){if(e===t)return!0;t=t.parentNode}return!1},fire:function(e,t,i){if(t&&t.layer instanceof L.MarkerCluster){if(t.originalEvent&&this._isOrIsParent(t.layer._icon,t.originalEvent.relatedTarget))return;e="cluster"+e}L.FeatureGroup.prototype.fire.call(this,e,t,i)},listens:function(e,t){return L.FeatureGroup.prototype.listens.call(this,e,t)||L.FeatureGroup.prototype.listens.call(this,"cluster"+e,t)},_defaultIconCreateFunction:function(e){var t=e.getChildCount(),i=" marker-cluster-";return i+=t<10?"small":t<100?"medium":"large",new L.DivIcon({html:"<div><span>"+t+"</span></div>",className:"marker-cluster"+i,iconSize:new L.Point(40,40)})},_bindEvents:function(){var e=this._map,t=this.options.spiderfyOnMaxZoom,i=this.options.showCoverageOnHover,r=this.options.zoomToBoundsOnClick,n=this.options.spiderfyOnEveryZoom;(t||r||n)&&this.on("clusterclick clusterkeypress",this._zoomOrSpiderfy,this),i&&(this.on("clustermouseover",this._showCoverage,this),this.on("clustermouseout",this._hideCoverage,this),e.on("zoomend",this._hideCoverage,this))},_zoomOrSpiderfy:function(e){var t=e.layer,i=t;if("clusterkeypress"!==e.type||!e.originalEvent||13===e.originalEvent.keyCode){for(;1===i._childClusters.length;)i=i._childClusters[0];i._zoom===this._maxZoom&&i._childCount===t._childCount&&this.options.spiderfyOnMaxZoom?t.spiderfy():this.options.zoomToBoundsOnClick&&t.zoomToBounds(),this.options.spiderfyOnEveryZoom&&t.spiderfy(),e.originalEvent&&13===e.originalEvent.keyCode&&this._map._container.focus()}},_showCoverage:function(e){var t=this._map;this._inZoomAnimation||(this._shownPolygon&&t.removeLayer(this._shownPolygon),2<e.layer.getChildCount()&&e.layer!==this._spiderfied&&(this._shownPolygon=new L.Polygon(e.layer.getConvexHull(),this.options.polygonOptions),t.addLayer(this._shownPolygon)))},_hideCoverage:function(){this._shownPolygon&&(this._map.removeLayer(this._shownPolygon),this._shownPolygon=null)},_unbindEvents:function(){var e=this.options.spiderfyOnMaxZoom,t=this.options.showCoverageOnHover,i=this.options.zoomToBoundsOnClick,r=this.options.spiderfyOnEveryZoom,n=this._map;(e||i||r)&&this.off("clusterclick clusterkeypress",this._zoomOrSpiderfy,this),t&&(this.off("clustermouseover",this._showCoverage,this),this.off("clustermouseout",this._hideCoverage,this),n.off("zoomend",this._hideCoverage,this))},_zoomEnd:function(){this._map&&(this._mergeSplitClusters(),this._zoom=Math.round(this._map._zoom),this._currentShownBounds=this._getExpandedVisibleBounds())},_moveEnd:function(){if(!this._inZoomAnimation){var e=this._getExpandedVisibleBounds();this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds,Math.floor(this._map.getMinZoom()),this._zoom,e),this._topClusterLevel._recursivelyAddChildrenToMap(null,Math.round(this._map._zoom),e),this._currentShownBounds=e}},_generateInitialClusters:function(){var e=Math.ceil(this._map.getMaxZoom()),t=Math.floor(this._map.getMinZoom()),i=this.options.maxClusterRadius,r=i;"function"!=typeof i&&(r=function(){return i}),null!==this.options.disableClusteringAtZoom&&(e=this.options.disableClusteringAtZoom-1),this._maxZoom=e,this._gridClusters={},this._gridUnclustered={};for(var n=e;t<=n;n--)this._gridClusters[n]=new L.DistanceGrid(r(n)),this._gridUnclustered[n]=new L.DistanceGrid(r(n));this._topClusterLevel=new this._markerCluster(this,t-1)},_addLayer:function(e,t){var i,r,n=this._gridClusters,s=this._gridUnclustered,o=Math.floor(this._map.getMinZoom());for(this.options.singleMarkerMode&&this._overrideMarkerIcon(e),e.on(this._childMarkerEventHandlers,this);o<=t;t--){i=this._map.project(e.getLatLng(),t);var a=n[t].getNearObject(i);if(a)return a._addChild(e),void(e.__parent=a);if(a=s[t].getNearObject(i)){var h=a.__parent;h&&this._removeLayer(a,!1);var l=new this._markerCluster(this,t,a,e);n[t].addObject(l,this._map.project(l._cLatLng,t)),a.__parent=l;var u=e.__parent=l;for(r=t-1;r>h._zoom;r--)u=new this._markerCluster(this,r,u),n[r].addObject(u,this._map.project(a.getLatLng(),r));return h._addChild(u),void this._removeFromGridUnclustered(a,t)}s[t].addObject(e,i)}this._topClusterLevel._addChild(e),e.__parent=this._topClusterLevel},_refreshClustersIcons:function(){this._featureGroup.eachLayer(function(e){e instanceof L.MarkerCluster&&e._iconNeedsUpdate&&e._updateIcon()})},_enqueue:function(e){this._queue.push(e),this._queueTimeout||(this._queueTimeout=setTimeout(L.bind(this._processQueue,this),300))},_processQueue:function(){for(var e=0;e<this._queue.length;e++)this._queue[e].call(this);this._queue.length=0,clearTimeout(this._queueTimeout),this._queueTimeout=null},_mergeSplitClusters:function(){var e=Math.round(this._map._zoom);this._processQueue(),this._zoom<e&&this._currentShownBounds.intersects(this._getExpandedVisibleBounds())?(this._animationStart(),this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds,Math.floor(this._map.getMinZoom()),this._zoom,this._getExpandedVisibleBounds()),this._animationZoomIn(this._zoom,e)):this._zoom>e?(this._animationStart(),this._animationZoomOut(this._zoom,e)):this._moveEnd()},_getExpandedVisibleBounds:function(){return this.options.removeOutsideVisibleBounds?L.Browser.mobile?this._checkBoundsMaxLat(this._map.getBounds()):this._checkBoundsMaxLat(this._map.getBounds().pad(1)):this._mapBoundsInfinite},_checkBoundsMaxLat:function(e){var t=this._maxLat;return void 0!==t&&(e.getNorth()>=t&&(e._northEast.lat=1/0),e.getSouth()<=-t&&(e._southWest.lat=-1/0)),e},_animationAddLayerNonAnimated:function(e,t){if(t===e)this._featureGroup.addLayer(e);else if(2===t._childCount){t._addToMap();var i=t.getAllChildMarkers();this._featureGroup.removeLayer(i[0]),this._featureGroup.removeLayer(i[1])}else t._updateIcon()},_extractNonGroupLayers:function(e,t){var i,r=e.getLayers(),n=0;for(t=t||[];n<r.length;n++)(i=r[n])instanceof L.LayerGroup?this._extractNonGroupLayers(i,t):t.push(i);return t},_overrideMarkerIcon:function(e){return e.options.icon=this.options.iconCreateFunction({getChildCount:function(){return 1},getAllChildMarkers:function(){return[e]}})}});L.MarkerClusterGroup.include({_mapBoundsInfinite:new L.LatLngBounds(new L.LatLng(-1/0,-1/0),new L.LatLng(1/0,1/0))}),L.MarkerClusterGroup.include({_noAnimation:{_animationStart:function(){},_animationZoomIn:function(e,t){this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds,Math.floor(this._map.getMinZoom()),e),this._topClusterLevel._recursivelyAddChildrenToMap(null,t,this._getExpandedVisibleBounds()),this.fire("animationend")},_animationZoomOut:function(e,t){this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds,Math.floor(this._map.getMinZoom()),e),this._topClusterLevel._recursivelyAddChildrenToMap(null,t,this._getExpandedVisibleBounds()),this.fire("animationend")},_animationAddLayer:function(e,t){this._animationAddLayerNonAnimated(e,t)}},_withAnimation:{_animationStart:function(){this._map._mapPane.className+=" leaflet-cluster-anim",this._inZoomAnimation++},_animationZoomIn:function(n,s){var o,a=this._getExpandedVisibleBounds(),h=this._featureGroup,e=Math.floor(this._map.getMinZoom());this._ignoreMove=!0,this._topClusterLevel._recursively(a,n,e,function(e){var t,i=e._latlng,r=e._markers;for(a.contains(i)||(i=null),e._isSingleParent()&&n+1===s?(h.removeLayer(e),e._recursivelyAddChildrenToMap(null,s,a)):(e.clusterHide(),e._recursivelyAddChildrenToMap(i,s,a)),o=r.length-1;0<=o;o--)t=r[o],a.contains(t._latlng)||h.removeLayer(t)}),this._forceLayout(),this._topClusterLevel._recursivelyBecomeVisible(a,s),h.eachLayer(function(e){e instanceof L.MarkerCluster||!e._icon||e.clusterShow()}),this._topClusterLevel._recursively(a,n,s,function(e){e._recursivelyRestoreChildPositions(s)}),this._ignoreMove=!1,this._enqueue(function(){this._topClusterLevel._recursively(a,n,e,function(e){h.removeLayer(e),e.clusterShow()}),this._animationEnd()})},_animationZoomOut:function(e,t){this._animationZoomOutSingle(this._topClusterLevel,e-1,t),this._topClusterLevel._recursivelyAddChildrenToMap(null,t,this._getExpandedVisibleBounds()),this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds,Math.floor(this._map.getMinZoom()),e,this._getExpandedVisibleBounds())},_animationAddLayer:function(e,t){var i=this,r=this._featureGroup;r.addLayer(e),t!==e&&(2<t._childCount?(t._updateIcon(),this._forceLayout(),this._animationStart(),e._setPos(this._map.latLngToLayerPoint(t.getLatLng())),e.clusterHide(),this._enqueue(function(){r.removeLayer(e),e.clusterShow(),i._animationEnd()})):(this._forceLayout(),i._animationStart(),i._animationZoomOutSingle(t,this._map.getMaxZoom(),this._zoom)))}},_animationZoomOutSingle:function(t,i,r){var n=this._getExpandedVisibleBounds(),s=Math.floor(this._map.getMinZoom());t._recursivelyAnimateChildrenInAndAddSelfToMap(n,s,i+1,r);var o=this;this._forceLayout(),t._recursivelyBecomeVisible(n,r),this._enqueue(function(){if(1===t._childCount){var e=t._markers[0];this._ignoreMove=!0,e.setLatLng(e.getLatLng()),this._ignoreMove=!1,e.clusterShow&&e.clusterShow()}else t._recursively(n,r,s,function(e){e._recursivelyRemoveChildrenFromMap(n,s,i+1)});o._animationEnd()})},_animationEnd:function(){this._map&&(this._map._mapPane.className=this._map._mapPane.className.replace(" leaflet-cluster-anim","")),this._inZoomAnimation--,this.fire("animationend")},_forceLayout:function(){L.Util.falseFn(document.body.offsetWidth)}}),L.markerClusterGroup=function(e){return new L.MarkerClusterGroup(e)};var i=L.MarkerCluster=L.Marker.extend({options:L.Icon.prototype.options,initialize:function(e,t,i,r){L.Marker.prototype.initialize.call(this,i?i._cLatLng||i.getLatLng():new L.LatLng(0,0),{icon:this,pane:e.options.clusterPane}),this._group=e,this._zoom=t,this._markers=[],this._childClusters=[],this._childCount=0,this._iconNeedsUpdate=!0,this._boundsNeedUpdate=!0,this._bounds=new L.LatLngBounds,i&&this._addChild(i),r&&this._addChild(r)},getAllChildMarkers:function(e,t){e=e||[];for(var i=this._childClusters.length-1;0<=i;i--)this._childClusters[i].getAllChildMarkers(e,t);for(var r=this._markers.length-1;0<=r;r--)t&&this._markers[r].__dragStart||e.push(this._markers[r]);return e},getChildCount:function(){return this._childCount},zoomToBounds:function(e){for(var t,i=this._childClusters.slice(),r=this._group._map,n=r.getBoundsZoom(this._bounds),s=this._zoom+1,o=r.getZoom();0<i.length&&s<n;){s++;var a=[];for(t=0;t<i.length;t++)a=a.concat(i[t]._childClusters);i=a}s<n?this._group._map.setView(this._latlng,s):n<=o?this._group._map.setView(this._latlng,o+1):this._group._map.fitBounds(this._bounds,e)},getBounds:function(){var e=new L.LatLngBounds;return e.extend(this._bounds),e},_updateIcon:function(){this._iconNeedsUpdate=!0,this._icon&&this.setIcon(this)},createIcon:function(){return this._iconNeedsUpdate&&(this._iconObj=this._group.options.iconCreateFunction(this),this._iconNeedsUpdate=!1),this._iconObj.createIcon()},createShadow:function(){return this._iconObj.createShadow()},_addChild:function(e,t){this._iconNeedsUpdate=!0,this._boundsNeedUpdate=!0,this._setClusterCenter(e),e instanceof L.MarkerCluster?(t||(this._childClusters.push(e),e.__parent=this),this._childCount+=e._childCount):(t||this._markers.push(e),this._childCount++),this.__parent&&this.__parent._addChild(e,!0)},_setClusterCenter:function(e){this._cLatLng||(this._cLatLng=e._cLatLng||e._latlng)},_resetBounds:function(){var e=this._bounds;e._southWest&&(e._southWest.lat=1/0,e._southWest.lng=1/0),e._northEast&&(e._northEast.lat=-1/0,e._northEast.lng=-1/0)},_recalculateBounds:function(){var e,t,i,r,n=this._markers,s=this._childClusters,o=0,a=0,h=this._childCount;if(0!==h){for(this._resetBounds(),e=0;e<n.length;e++)i=n[e]._latlng,this._bounds.extend(i),o+=i.lat,a+=i.lng;for(e=0;e<s.length;e++)(t=s[e])._boundsNeedUpdate&&t._recalculateBounds(),this._bounds.extend(t._bounds),i=t._wLatLng,r=t._childCount,o+=i.lat*r,a+=i.lng*r;this._latlng=this._wLatLng=new L.LatLng(o/h,a/h),this._boundsNeedUpdate=!1}},_addToMap:function(e){e&&(this._backupLatlng=this._latlng,this.setLatLng(e)),this._group._featureGroup.addLayer(this)},_recursivelyAnimateChildrenIn:function(e,n,t){this._recursively(e,this._group._map.getMinZoom(),t-1,function(e){var t,i,r=e._markers;for(t=r.length-1;0<=t;t--)(i=r[t])._icon&&(i._setPos(n),i.clusterHide())},function(e){var t,i,r=e._childClusters;for(t=r.length-1;0<=t;t--)(i=r[t])._icon&&(i._setPos(n),i.clusterHide())})},_recursivelyAnimateChildrenInAndAddSelfToMap:function(t,i,r,n){this._recursively(t,n,i,function(e){e._recursivelyAnimateChildrenIn(t,e._group._map.latLngToLayerPoint(e.getLatLng()).round(),r),e._isSingleParent()&&r-1===n?(e.clusterShow(),e._recursivelyRemoveChildrenFromMap(t,i,r)):e.clusterHide(),e._addToMap()})},_recursivelyBecomeVisible:function(e,t){this._recursively(e,this._group._map.getMinZoom(),t,null,function(e){e.clusterShow()})},_recursivelyAddChildrenToMap:function(r,n,s){this._recursively(s,this._group._map.getMinZoom()-1,n,function(e){if(n!==e._zoom)for(var t=e._markers.length-1;0<=t;t--){var i=e._markers[t];s.contains(i._latlng)&&(r&&(i._backupLatlng=i.getLatLng(),i.setLatLng(r),i.clusterHide&&i.clusterHide()),e._group._featureGroup.addLayer(i))}},function(e){e._addToMap(r)})},_recursivelyRestoreChildPositions:function(e){for(var t=this._markers.length-1;0<=t;t--){var i=this._markers[t];i._backupLatlng&&(i.setLatLng(i._backupLatlng),delete i._backupLatlng)}if(e-1===this._zoom)for(var r=this._childClusters.length-1;0<=r;r--)this._childClusters[r]._restorePosition();else for(var n=this._childClusters.length-1;0<=n;n--)this._childClusters[n]._recursivelyRestoreChildPositions(e)},_restorePosition:function(){this._backupLatlng&&(this.setLatLng(this._backupLatlng),delete this._backupLatlng)},_recursivelyRemoveChildrenFromMap:function(e,t,i,r){var n,s;this._recursively(e,t-1,i-1,function(e){for(s=e._markers.length-1;0<=s;s--)n=e._markers[s],r&&r.contains(n._latlng)||(e._group._featureGroup.removeLayer(n),n.clusterShow&&n.clusterShow())},function(e){for(s=e._childClusters.length-1;0<=s;s--)n=e._childClusters[s],r&&r.contains(n._latlng)||(e._group._featureGroup.removeLayer(n),n.clusterShow&&n.clusterShow())})},_recursively:function(e,t,i,r,n){var s,o,a=this._childClusters,h=this._zoom;if(t<=h&&(r&&r(this),n&&h===i&&n(this)),h<t||h<i)for(s=a.length-1;0<=s;s--)(o=a[s])._boundsNeedUpdate&&o._recalculateBounds(),e.intersects(o._bounds)&&o._recursively(e,t,i,r,n)},_isSingleParent:function(){return 0<this._childClusters.length&&this._childClusters[0]._childCount===this._childCount}});L.Marker.include({clusterHide:function(){var e=this.options.opacity;return this.setOpacity(0),this.options.opacity=e,this},clusterShow:function(){return this.setOpacity(this.options.opacity)}}),L.DistanceGrid=function(e){this._cellSize=e,this._sqCellSize=e*e,this._grid={},this._objectPoint={}},L.DistanceGrid.prototype={addObject:function(e,t){var i=this._getCoord(t.x),r=this._getCoord(t.y),n=this._grid,s=n[r]=n[r]||{},o=s[i]=s[i]||[],a=L.Util.stamp(e);this._objectPoint[a]=t,o.push(e)},updateObject:function(e,t){this.removeObject(e),this.addObject(e,t)},removeObject:function(e,t){var i,r,n=this._getCoord(t.x),s=this._getCoord(t.y),o=this._grid,a=o[s]=o[s]||{},h=a[n]=a[n]||[];for(delete this._objectPoint[L.Util.stamp(e)],i=0,r=h.length;i<r;i++)if(h[i]===e)return h.splice(i,1),1===r&&delete a[n],!0},eachObject:function(e,t){var i,r,n,s,o,a,h=this._grid;for(i in h)for(r in o=h[i])for(n=0,s=(a=o[r]).length;n<s;n++)e.call(t,a[n])&&(n--,s--)},getNearObject:function(e){var t,i,r,n,s,o,a,h,l=this._getCoord(e.x),u=this._getCoord(e.y),_=this._objectPoint,d=this._sqCellSize,p=null;for(t=u-1;t<=u+1;t++)if(n=this._grid[t])for(i=l-1;i<=l+1;i++)if(s=n[i])for(r=0,o=s.length;r<o;r++)a=s[r],((h=this._sqDist(_[L.Util.stamp(a)],e))<d||h<=d&&null===p)&&(d=h,p=a);return p},_getCoord:function(e){var t=Math.floor(e/this._cellSize);return isFinite(t)?t:e},_sqDist:function(e,t){var i=t.x-e.x,r=t.y-e.y;return i*i+r*r}},L.QuickHull={getDistant:function(e,t){var i=t[1].lat-t[0].lat;return(t[0].lng-t[1].lng)*(e.lat-t[0].lat)+i*(e.lng-t[0].lng)},findMostDistantPointFromBaseLine:function(e,t){var i,r,n,s=0,o=null,a=[];for(i=t.length-1;0<=i;i--)r=t[i],0<(n=this.getDistant(r,e))&&(a.push(r),s<n&&(s=n,o=r));return{maxPoint:o,newPoints:a}},buildConvexHull:function(e,t){var i=[],r=this.findMostDistantPointFromBaseLine(e,t);return r.maxPoint?i=(i=i.concat(this.buildConvexHull([e[0],r.maxPoint],r.newPoints))).concat(this.buildConvexHull([r.maxPoint,e[1]],r.newPoints)):[e[0]]},getConvexHull:function(e){var t,i=!1,r=!1,n=!1,s=!1,o=null,a=null,h=null,l=null,u=null,_=null;for(t=e.length-1;0<=t;t--){var d=e[t];(!1===i||d.lat>i)&&(i=(o=d).lat),(!1===r||d.lat<r)&&(r=(a=d).lat),(!1===n||d.lng>n)&&(n=(h=d).lng),(!1===s||d.lng<s)&&(s=(l=d).lng)}return u=r!==i?(_=a,o):(_=l,h),[].concat(this.buildConvexHull([_,u],e),this.buildConvexHull([u,_],e))}},L.MarkerCluster.include({getConvexHull:function(){var e,t,i=this.getAllChildMarkers(),r=[];for(t=i.length-1;0<=t;t--)e=i[t].getLatLng(),r.push(e);return L.QuickHull.getConvexHull(r)}}),L.MarkerCluster.include({_2PI:2*Math.PI,_circleFootSeparation:25,_circleStartAngle:0,_spiralFootSeparation:28,_spiralLengthStart:11,_spiralLengthFactor:5,_circleSpiralSwitchover:9,spiderfy:function(){if(this._group._spiderfied!==this&&!this._group._inZoomAnimation){var e,t=this.getAllChildMarkers(null,!0),i=this._group._map.latLngToLayerPoint(this._latlng);this._group._unspiderfy(),e=(this._group._spiderfied=this)._group.options.spiderfyShapePositions?this._group.options.spiderfyShapePositions(t.length,i):t.length>=this._circleSpiralSwitchover?this._generatePointsSpiral(t.length,i):(i.y+=10,this._generatePointsCircle(t.length,i)),this._animationSpiderfy(t,e)}},unspiderfy:function(e){this._group._inZoomAnimation||(this._animationUnspiderfy(e),this._group._spiderfied=null)},_generatePointsCircle:function(e,t){var i,r,n=this._group.options.spiderfyDistanceMultiplier*this._circleFootSeparation*(2+e)/this._2PI,s=this._2PI/e,o=[];for(n=Math.max(n,35),o.length=e,i=0;i<e;i++)r=this._circleStartAngle+i*s,o[i]=new L.Point(t.x+n*Math.cos(r),t.y+n*Math.sin(r))._round();return o},_generatePointsSpiral:function(e,t){var i,r=this._group.options.spiderfyDistanceMultiplier,n=r*this._spiralLengthStart,s=r*this._spiralFootSeparation,o=r*this._spiralLengthFactor*this._2PI,a=0,h=[];for(i=h.length=e;0<=i;i--)i<e&&(h[i]=new L.Point(t.x+n*Math.cos(a),t.y+n*Math.sin(a))._round()),n+=o/(a+=s/n+5e-4*i);return h},_noanimationUnspiderfy:function(){var e,t,i=this._group,r=i._map,n=i._featureGroup,s=this.getAllChildMarkers(null,!0);for(i._ignoreMove=!0,this.setOpacity(1),t=s.length-1;0<=t;t--)e=s[t],n.removeLayer(e),e._preSpiderfyLatlng&&(e.setLatLng(e._preSpiderfyLatlng),delete e._preSpiderfyLatlng),e.setZIndexOffset&&e.setZIndexOffset(0),e._spiderLeg&&(r.removeLayer(e._spiderLeg),delete e._spiderLeg);i.fire("unspiderfied",{cluster:this,markers:s}),i._ignoreMove=!1,i._spiderfied=null}}),L.MarkerClusterNonAnimated=L.MarkerCluster.extend({_animationSpiderfy:function(e,t){var i,r,n,s,o=this._group,a=o._map,h=o._featureGroup,l=this._group.options.spiderLegPolylineOptions;for(o._ignoreMove=!0,i=0;i<e.length;i++)s=a.layerPointToLatLng(t[i]),r=e[i],n=new L.Polyline([this._latlng,s],l),a.addLayer(n),r._spiderLeg=n,r._preSpiderfyLatlng=r._latlng,r.setLatLng(s),r.setZIndexOffset&&r.setZIndexOffset(1e6),h.addLayer(r);this.setOpacity(.3),o._ignoreMove=!1,o.fire("spiderfied",{cluster:this,markers:e})},_animationUnspiderfy:function(){this._noanimationUnspiderfy()}}),L.MarkerCluster.include({_animationSpiderfy:function(e,t){var i,r,n,s,o,a,h=this,l=this._group,u=l._map,_=l._featureGroup,d=this._latlng,p=u.latLngToLayerPoint(d),c=L.Path.SVG,f=L.extend({},this._group.options.spiderLegPolylineOptions),m=f.opacity;for(void 0===m&&(m=L.MarkerClusterGroup.prototype.options.spiderLegPolylineOptions.opacity),c?(f.opacity=0,f.className=(f.className||"")+" leaflet-cluster-spider-leg"):f.opacity=m,l._ignoreMove=!0,i=0;i<e.length;i++)r=e[i],a=u.layerPointToLatLng(t[i]),n=new L.Polyline([d,a],f),u.addLayer(n),r._spiderLeg=n,c&&(o=(s=n._path).getTotalLength()+.1,s.style.strokeDasharray=o,s.style.strokeDashoffset=o),r.setZIndexOffset&&r.setZIndexOffset(1e6),r.clusterHide&&r.clusterHide(),_.addLayer(r),r._setPos&&r._setPos(p);for(l._forceLayout(),l._animationStart(),i=e.length-1;0<=i;i--)a=u.layerPointToLatLng(t[i]),(r=e[i])._preSpiderfyLatlng=r._latlng,r.setLatLng(a),r.clusterShow&&r.clusterShow(),c&&((s=(n=r._spiderLeg)._path).style.strokeDashoffset=0,n.setStyle({opacity:m}));this.setOpacity(.3),l._ignoreMove=!1,setTimeout(function(){l._animationEnd(),l.fire("spiderfied",{cluster:h,markers:e})},200)},_animationUnspiderfy:function(e){var t,i,r,n,s,o,a=this,h=this._group,l=h._map,u=h._featureGroup,_=e?l._latLngToNewLayerPoint(this._latlng,e.zoom,e.center):l.latLngToLayerPoint(this._latlng),d=this.getAllChildMarkers(null,!0),p=L.Path.SVG;for(h._ignoreMove=!0,h._animationStart(),this.setOpacity(1),i=d.length-1;0<=i;i--)(t=d[i])._preSpiderfyLatlng&&(t.closePopup(),t.setLatLng(t._preSpiderfyLatlng),delete t._preSpiderfyLatlng,o=!0,t._setPos&&(t._setPos(_),o=!1),t.clusterHide&&(t.clusterHide(),o=!1),o&&u.removeLayer(t),p&&(s=(n=(r=t._spiderLeg)._path).getTotalLength()+.1,n.style.strokeDashoffset=s,r.setStyle({opacity:0})));h._ignoreMove=!1,setTimeout(function(){var e=0;for(i=d.length-1;0<=i;i--)(t=d[i])._spiderLeg&&e++;for(i=d.length-1;0<=i;i--)(t=d[i])._spiderLeg&&(t.clusterShow&&t.clusterShow(),t.setZIndexOffset&&t.setZIndexOffset(0),1<e&&u.removeLayer(t),l.removeLayer(t._spiderLeg),delete t._spiderLeg);h._animationEnd(),h.fire("unspiderfied",{cluster:a,markers:d})},200)}}),L.MarkerClusterGroup.include({_spiderfied:null,unspiderfy:function(){this._unspiderfy.apply(this,arguments)},_spiderfierOnAdd:function(){this._map.on("click",this._unspiderfyWrapper,this),this._map.options.zoomAnimation&&this._map.on("zoomstart",this._unspiderfyZoomStart,this),this._map.on("zoomend",this._noanimationUnspiderfy,this),L.Browser.touch||this._map.getRenderer(this)},_spiderfierOnRemove:function(){this._map.off("click",this._unspiderfyWrapper,this),this._map.off("zoomstart",this._unspiderfyZoomStart,this),this._map.off("zoomanim",this._unspiderfyZoomAnim,this),this._map.off("zoomend",this._noanimationUnspiderfy,this),this._noanimationUnspiderfy()},_unspiderfyZoomStart:function(){this._map&&this._map.on("zoomanim",this._unspiderfyZoomAnim,this)},_unspiderfyZoomAnim:function(e){L.DomUtil.hasClass(this._map._mapPane,"leaflet-touching")||(this._map.off("zoomanim",this._unspiderfyZoomAnim,this),this._unspiderfy(e))},_unspiderfyWrapper:function(){this._unspiderfy()},_unspiderfy:function(e){this._spiderfied&&this._spiderfied.unspiderfy(e)},_noanimationUnspiderfy:function(){this._spiderfied&&this._spiderfied._noanimationUnspiderfy()},_unspiderfyLayer:function(e){e._spiderLeg&&(this._featureGroup.removeLayer(e),e.clusterShow&&e.clusterShow(),e.setZIndexOffset&&e.setZIndexOffset(0),this._map.removeLayer(e._spiderLeg),delete e._spiderLeg)}}),L.MarkerClusterGroup.include({refreshClusters:function(e){return e?e instanceof L.MarkerClusterGroup?e=e._topClusterLevel.getAllChildMarkers():e instanceof L.LayerGroup?e=e._layers:e instanceof L.MarkerCluster?e=e.getAllChildMarkers():e instanceof L.Marker&&(e=[e]):e=this._topClusterLevel.getAllChildMarkers(),this._flagParentsIconsNeedUpdate(e),this._refreshClustersIcons(),this.options.singleMarkerMode&&this._refreshSingleMarkerModeMarkers(e),this},_flagParentsIconsNeedUpdate:function(e){var t,i;for(t in e)for(i=e[t].__parent;i;)i._iconNeedsUpdate=!0,i=i.__parent},_refreshSingleMarkerModeMarkers:function(e){var t,i;for(t in e)i=e[t],this.hasLayer(i)&&i.setIcon(this._overrideMarkerIcon(i))}}),L.Marker.include({refreshIconOptions:function(e,t){var i=this.options.icon;return L.setOptions(i,e),this.setIcon(i),t&&this.__parent&&this.__parent._group.refreshClusters(this),this}}),e.MarkerClusterGroup=t,e.MarkerCluster=i,Object.defineProperty(e,"__esModule",{value:!0})});
+//# sourceMappingURL=leaflet.markercluster.js.map
\ No newline at end of file