Corfe Castle for Birdwatchers.
The Isle of Purbeck is visited by 90% of UK birds. The RSPB has a nature reserve with hides at Arne and there are hides on Hartland Moor, both overlooking the waters of Poole harbour. There are hides at Studland overlooking Poole harbour. The Durlston Country Park is a great area for watching sea and cliff loving birds.