Canvey Island the 30 hectares known as West Canvey marshes, acquired by the RSPB in 2007, and the Canvey Wick nature reserve. Canvey Wick is a designated Site of Special Scientific Interest (SSSI) at the site of the abandoned and incomplete oil refinery. The foundations of the 100 hectare (0.4 sq mile) site were prepared in the 1970s by laying thousands of tonnes of silt dredged from the Thames; the abandoned and undisturbed area has flourished as a haven for around 1,300 species of wildlife, many of which are endangered or were thought to be extinct; including the shrill carder bee, the
Canvey Island Independent Party to form the local government district and borough of Castle Point, ending Canvey Island's existence as a separate entity in local government. The Canvey Island Independents were established in 2004 to campaign for a return to Canvey Island's autonomy, which had been abolished 32 years previously. They argued that the current local government arrangements - which saw more councillors elected to the Borough Council from the mainland - were unfair to the residents of Canvey Island. They also campaigned for more power to be devolved to Canvey Island Town Council, a parish council subordinate to Castle Point which is responsible