Holland-on-Sea Cliff Holland-on-Sea Cliff Holland-on-Sea Cliff is a 0.1 hectare geological Site of Special Scientific Interest in Holland-on-Sea, north-west of Clacton-on-Sea in Essex. It is a Geological Conservation Review site. This site is of great importance in understanding the evolution of the London Basin, and it is the type site for two different gravels. The "Lower Holland Gravel" was the final terrace laid down by the River Thames before the river was diverted south during the Anglian glaciation around 450,000 years ago. The "Upper Thames Gravel" was deposited when the Thames was blocked by ice and not reaching the area. As the
HMS Clacton (J151) HMS Clacton (J151) HMS "Clacton" was a s built for the Royal Navy during the Second World War. The "Bangor" class was designed as a small minesweeper that could be easily built in large numbers by civilian shipyards; as steam turbines were difficult to manufacture, the ships were designed to accept a wide variety of engines. "Clacton" displaced at standard load and at deep load. The ship had an overall length of , a beam of and a draught of . The ship's complement consisted of 60 officers and ratings. She was powered by two Parsons geared steam turbines, each