Brownsea Castle the castle also has four cannons, probably dating from the 17th or early 18th century. The castle is protected under UK law as a Grade II listed building. Brownsea Castle Brownsea Castle, also known historically as Branksea Castle, was originally a Device Fort constructed by Henry VIII between 1545 and 1547 to protect Poole Harbour in Dorset, England, from the threat of French attack. Located on Brownsea Island, it comprised a stone blockhouse with a hexagonal gun platform. It was garrisoned by the local town with six soldiers and armed with eight artillery pieces. The castle remained in use after
Brownsea Island Scout camp years after the war Baden-Powell broached the idea of a new youth organisation with a number of people, including William Alexander Smith, founder of the Boys' Brigade, with whom he discussed setting up a Boys Brigade Scouting achievement. To test his ideas while writing "Scouting for Boys", Baden-Powell conceived of an experimental camp, creating a program to take place on Brownsea Island during the summer of 1907. He invited his lifelong friend, Major Kenneth McLaren, to attend the camp as an assistant. Baden-Powell had visited Brownsea Island as a boy with his brothers. It covers of woodland and open areas,