The Black Deep is in the outer Thames Estuary. It is the greatest of three mainly natural shipping channels linking the Tideway to central zones of the North Sea without shoals, the others being the Barrow Deep and Princes Channel. Between these, a few others, and the shores of Kent, Suffolk and Essex are many long shoals in the North Sea, broadly shallow enough to wreck vessels of substantial draft at low tide.
Image: Admiralty Chart No 1975 Kentish Knock and the Naze to The Nore, Published 1934
Image: Admiralty Chart No 1975 Kentish Knock and the Naze to The Nore, Published 1934
The Thames Estuary is where the River Thames meets the waters of the North Sea, in the south-east of Great Britain.
The half of the estuary that lies east of its narrow Tideway-named part, by the Operational Land Imager
London Stone, Yantlet Creek
Wind farms in the estuary, in this case the London Array.
The Blackwater Estuary, on the Essex coast, in the northern part of the Greater Thames Estuary. Mersea Island is on the right.