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 Island island has a heronry, in which both grey heron and little egret nest. There is a large population of non-native sika deer on the island. In the past the numbers have been higher than the island can sustain and have overgrazed. To try to limit damage to trees and other vegetation by deer, areas of the island have been fenced off to provide areas of undamaged woodland to allow other species such as red squirrels to thrive. The lagoon is noted for the large population of common tern and sandwich tern in summer, and a very large flock of avocets