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 Castle of the 20th century, using it to house his collection of antique musical instruments. Brownsea Castle was purchased by Mary Bonham-Christie in 1927. She allowed the property to fall into disrepair and by the time of her death in 1961 it was in a very poor condition. It was then purchased by the National Trust and leased to the John Lewis Partnership, who restored it over many years. In the 21st century it is still used by the Partnership as a corporate hotel for their employees and retired staff. Brownsea Castle was built as a consequence of international tensions between