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
Clacton-on-Sea railway station Colchester, as part of British Railways' experiments with 25 kV AC electrification, rather than the previously preferred 1500 V DC system. Through electrified services to Liverpool Street were introduced on 7 January 1963. Clacton station has a sizeable concourse sheltered by a glazed roof. Platforms 1 and 3 have an operational length for ten-coach trains and platforms 2 and 4 have an operational length for twelve-coach trains. There is a traction depot just outside the station, with some stabling sidings alongside the station itself. Its name was changed to Clacton-on-Sea in May 2007. The typical service is one train per