Benn's Island, previously named Church Eyot, Kember's Eyot and sometimes referred to as Benn's Ait,[1][n 1] is a private 0.1-acre (0.040 ha) ait (island) on the River Thames south-west of London.
The water between the island and the near bank is shallow and navigable with care to small vessels.
The clubhouse is linked to Benn's Alley, a narrow slipway on the northern bank by a manually operated pedestrian chain ferry at the downstream end.
Hampton Ferry connecting to Molesey operates to the east of the island using a separate set of steps or slipway and directly facing to St Mary's Church.
[2] In the 19th century the island was used by the then Thames Valley Sailing Club, transforming to the Middle Thames Yacht and motorboat club on Sunbury Lock Ait, whose then headquarters were a houseboat moored at Benn's Island and which was destroyed by fire in 1900.