Brownsea Island by third parties, is owned by the National Trust. Most of the buildings are situated near the small landing stage. The northern portion of the island is a Nature Reserve managed by Dorset Wildlife Trust and an important habitat for birds; this part of the island has limited public access. A small portion to the southeast of the island, along with Brownsea Castle, is leased to the John Lewis Partnership for use as a holiday hotel for staff, and is not open to the public. The island forms part of the Studland civil parish in the Purbeck local government district.
Brownsea Island "Scouting for Boys", and the international Scouting movement grew rapidly. Boy Scouts continued to camp on the island until the 1930s, when all public access to the island was forbidden by the island's owner. After ownership of the island transferred to the National Trust, a permanent Scout camp site was opened in 1963 by Olave Baden-Powell. In August 2007, 100 years after the first experimental camp, Brownsea Island was the focus of worldwide celebrations of the centenary of Scouting. Four camps were set up on the island including a replica of the original 1907 camp, and hundreds of Scouts and