Two Tree Island lies northeast of Canvey Island and southwest of Leigh-on-Sea, just over 54 kilometres east of London. Connected to Leigh by a bridge, this piece of land was reclaimed from the Thames Estuary in the 18th century and had rather inauspicious beginnings as a sewage works and landfill site. The Essex Wildlife Trust now manages the island and the eastern half is part of the Leigh National Nature Reserve, while the western half has two bird hides. The south shore of the island, at the end of the island road, is a popular place for water-based activities and the west coast is excellent for bird watchers.