Canvey seawall West

The Occidental Refinery (or Occidental Thames Refinery) was an oil refinery on Canvey Island, Essex, England. Located in the Thames Estuary, the partly-built, non-operational, six million tonne/year refinery was planned and constructed by Occidental Refineries Limited in 1970–5 and demolished in 1996–7.

Lower Horse is a 31.1-acre (12.6 ha) uninhabited island off the English coast, lying in the Thames Estuary between Canvey Island and Stanford-le-Hope, close to grid reference TQ760828.

Canvey Wick is a 93.2 hectare Site of Special Scientific Interest at the south-west corner of Canvey Island in Essex. It is owned by the Land Trust and managed by the Royal Society for the Protection of Birds and Buglife.The site was formerly the Occidental oil refinery, and has been transformed into an area of grazing marsh.

Holehaven Creek is a 272.9 hectare biological Site of Special Scientific Interest (SSSI) between Canvey Island and Corringham in Essex.The SSSI consists of Holehaven Creek itself and part of the adjoining East Haven Creek and Vange Creek. It is part of the Thames Estuary, and drains the surrounding marshes into the river.