Brownsea Island Theatre, annually performing the works of William Shakespeare. The island has a visitor centre and museum, displaying the island's history. There is also a newly located shop and cafe, with one holiday cottage on the quay. At the Scout camp at the south-west of the Island there is an outdoor centre and a trading post shop which is focused on the Scout movement. The Dorset Wildlife Trust operates on the island from an old villa. The island has a single post box that is emptied each day. In October 2008, the island was featured on BBC One's annual "Autumnwatch" programme.
Brownsea Island instigator of Pride's Purge– the only military coup d'état in English history – was stationed on the island in 1654. Sir Robert Clayton, a Lord Mayor of the City of London and wealthy merchant became owner in the mid-1650s and after his death in 1707 the island was sold to William Benson, a Whig Member of Parliament and architect. He converted the castle into a residence and was responsible for introducing many varieties of trees to the island. In 1765 Sir Humphrey Sturt, a local landowner and MP purchased the island, which in turn passed to his sons. Sturt expanded