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
Butlin's Clacton the west of the town. After gaining the support of the local council, construction began and the camp opened on 11 June 1938. During the War years, all the Butlin's camps were requisitioned by the Government. Clacton was originally planned to be used as a POW camp, but it was spared this indignity and was used as a training site for the pioneer corps. However during its occupation, the camp suffered significant damage and substantial repairs had to be carried out to put the camp back into operation. It reopened to the public in 1946. In 1972, the Butlin's organisation