Located just off Chiswick Mall in London’s west, this 3.2 acre tidal island (one of 42 unbridged tidal islands in England) is the lowest in The Thames (and hence gets submerged at high tide – the island appears in the picture above at low tide).
Historically, the island – which is shaped like the plan of a ship sitting parallel to the Mall – was used as a location for the growing of osiers (basket willows) which were used to make baskets.
Formerly owned by the church, in 1934 ownership passed to the local council, now the London Borough of Hounslow. It declared the island a local nature reserve in 1993. Conservation days are regularly held on the island by river conservation group Thames21 (but otherwise people are requested to stay off the island).
The island is a key point on The Championship Course during the annual Boat Race between Oxford and Cambridge from Putney to Mortlake.