---
title: cluster
framework: mapkit
role: symbol
role_heading: Instance Property
path: mapkit/mkannotationview/cluster
---

# cluster

The clustering annotation view that replaces the annotation view.

## Declaration

```swift
weak var cluster: MKAnnotationView? { get }
```

## Discussion

Discussion When the map is displaying this annotation view, the value of this property is nil.

## See Also

### Clustering annotation views

- [Decluttering a Map with MapKit Annotation Clustering](mapkit/decluttering-a-map-with-mapkit-annotation-clustering.md)
- [clusteringIdentifier](mapkit/mkannotationview/clusteringidentifier.md)