The Kentish Knock is a long shoal in the North Sea east of Essex, England. It is the most easterly of those of the Thames Estuary and its core, which is shallower than 18 feet, extends 6 miles. Thus i
Wreck of SS Deutschland in 1875
The lightvessel sunk in 1886
Crash of airship L15 in 1916
Admiralty Chart No 1975 Kentish Knock and the Naze to The Nore, Published 1934
Foulness Island is an island in Essex, England, in the Thames estuary. It is separated from the mainland by narrow creeks. The island is usually closed to the general public, having been taken over fo
Kentish Knock
…shallower than 18 feet (5.5 m), extends 6 miles (9.7 km). Thus it is a major hazard to deep-draught navigation. It is exactly 28 miles (45 km) due east of Foulness Point, Essex and is centred about 15 miles (24 km) NNE of North Foreland, Kent – both are extreme points of those counties. It is about equidistant between…
Deserted roads of Foulness Island geograph.org.uk 901311
Official Secrets Acts 1911 to 1939 warning sign, in 1988.
Foulness and Potton Island, as they appear in 2013