Green Island (Dorset) Green Island (Dorset) Green Island is an island in Poole Harbour in the English county of Dorset. It lies in the central south part of the harbour, south of Brownsea Island and Furzey Island. The island is an Area of Outstanding Natural Beauty (AONB), Site of Special Scientific Interest (SSSI) and Special Protection Area (SPA). The island covers approximately at low tide while the central raised part of the island is approximately . The island is covered in extensive woodland in the centre, made up of Scots pine with several small zones of heathland. The island also has a large
Brownsea Castle of the 20th century, using it to house his collection of antique musical instruments. Brownsea Castle was purchased by Mary Bonham-Christie in 1927. She allowed the property to fall into disrepair and by the time of her death in 1961 it was in a very poor condition. It was then purchased by the National Trust and leased to the John Lewis Partnership, who restored it over many years. In the 21st century it is still used by the Partnership as a corporate hotel for their employees and retired staff. Brownsea Castle was built as a consequence of international tensions between