A cluster marker - a circle - appears when care services are close to each other on a map. The number on a cluster indicates how many markers it contains. When you zoom into any of the cluster locations, the number on the cluster decreases until you see the individual markers on the map. Zooming out of the map consolidates the markers into clusters again. The color code of a marker cluster does not indicate the type of palliative care service, it depends on the number of items it contains..