Canvey Island Canvey Island Canvey Island is a civil parish and reclaimed island in the Thames estuary in Essex, England. It has an area of and a population of 38,170. It is separated from the mainland of south Essex by a network of creeks. Lying only just above sea level it is prone to flooding at exceptional tides, but has nevertheless been inhabited since the Roman invasion of Britain. The island was mainly agricultural land until the 20th century when it became the fastest growing seaside resort in Britain between 1911 and 1951. The North Sea flood of 1953 devastated the island,
Canvey Island Kaneweye, Kaneveye and Koneveye. By the 12th century, Essex and subsequently Canvey were in the possession of Henry de Essex who inherited the land from his grandfather, Swein, son of Robert fitz Wymarch. During the reign of Henry II (1154–1189) the land was confiscated from de Essex and redistributed among the King's favoured nobles. Shown on John Norden's 1594 map with the second word "insula" with the traditional middle "s", facing the 'Isle' of Grain rather than a Latinised "Sheppey insula" to the southeast, is a close eastern division which is perhaps the part which later almost wholly merged into