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
Exe Estuary food for Eurasian oystercatchers ("Haematopus ostralegus"). The estuary is the only British location for the polychaete worm "Ophelia bicornia". The Exe Valley Way Footpath runs south from Starcross, Northwards through the whole of the Exe estuary, and further north to the heights of Exmoor, ending at the source of the River Exe - Exe Head. The route covers almost 50 miles. Exe Estuary The Exe estuary is an estuary on the south coast of Devon, England. The estuary starts just to the south () of the city of Exeter, and extends south for approximately eight miles to meet the English