Brownsea Island Brownsea Island Brownsea Island (also archaically known as "Branksea") is the largest of the islands in Poole Harbour in the county of Dorset, England. The island is owned by the National Trust. Much of the island is open to the public and includes areas of woodland and heath with a wide variety of wildlife, together with cliff top views across Poole Harbour and the Isle of Purbeck. The island was the location of an experimental camp in 1907 that led to the formation of the Scout movement the following year. Access is by public ferry or private boat; in 2017
Brownsea Island In the past invasive species such as rhododendrons, also non-native, were introduced to the island, but the trusts have cleared many areas. The entire island is designated a Site of Special Scientific Interest. The island is one of the few places in southern England where indigenous red squirrels survive, largely because non-native grey squirrels have never been introduced to the island. The Brownsea red squirrel population is the only population known in the UK to carry the human form of the bacteria stem "Mycobacterium leprae" that causes leprosy in humans. Brownsea also has a small ornamental population of peacocks. The