Brownsea Island (aka 'Branksea') is the largest island in Poole Harbour (about 1 mile x 1/2 mile) and is primarily a wildlife area of woodland, heath and wetland, home to red squirrels and a variety birds. There are trails and events, including open air theatre and an annual round the island swim. Brownsea was chosen by Baden-Powell to try out his scouting ideas and is also said to have inspired Enid Blyton. Brownsea Castle, originally 16th century, is currently (August 2016) leased to the John Lewis Partnership as a staff hotel and not open to the public. Access to the island is by ferry from Poole.