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Tuesday, 22 April 2025

Osea Island

Tidal island in the estuary of the River Blackwater, Essex, East England


Osea Island
Osea Island

Osea Island, formerly also Osey, is an inhabited island in the estuary of the River Blackwater, Essex, East England. It is approximately 380 acres in size and is connected to the north bank of the river by a causeway that is covered at high water. The island's population is included in the civil parish of Heybridge.

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