|Oil Refining at Coryton glimpsed from across the West Canvey Marsh|
This alluvial island- separated from the mainland by a network of narrow, tidal creeks- has been occupied since pre-Roman times and has an average elevation approximately three metres below mean high water level..
|The marina at low tide|
Presently it is home to some 34,000 people, with 14 miles of sea defences and a weekly flood alarm protecting them from the rising tide. A concrete wall surrounds the entire island: though it is only separated from the South Essex mainland by less than 100 metres, this structure (and the fact that it only two roads connect the land mass to the South Essex coat) reinforce the sense of separateness and isolation.
|...the sea defence: a 3 metre high wall surrounding the island's perimeter|