Brownsea Island Girl Guides from 160 countries travelled to the island to take part in the celebrations. Also present on the Island that day were these 17 descendants of B-P - Robert, Michael; Gill, Robin, Crispin; Natasha; Rosie, Tristram, Louis; Daphne; Buzz, Ossian; Rawley, Branwen; Toby, Annarella; Emily. Brownsea Island is twinned with: 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
Brownsea Castle another device in 1544 to further improve the country's defences, particularly along the south coast. The castle was built on the south-east corner of Brownsea Island between 1545 and 1547 to protect the entrance of the busy Poole Harbour. The island belonged to the Crown, having been confiscated from Cerne Abbey during the Dissolution of the Monasteries a few years before. It was a conservative design, being a one-storey, square blockhouse, reported in 1552 to be across, able to support guns on its roof and sub-divided into three rooms; the blockhouse was originally intended to have been two storeys in