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 and Friday before the August Bank Holiday, with historic and modern aircraft such as the Lancaster, Spitfire, Hurricane, Harrier, Jaguar, Tornado, and helicopters. There are also wing-walkers and the Red Arrows. Clacton has a shopping area with many of the usual national chains represented, and a Factory Shopping Village in the north of the town. Clacton has two theatres, the West Cliff Theatre and the Princes Theatre. The West Cliff is one of the last theatres in the country to put on an old-style summer show. Clacton was a site of the lower Palaeolithic Clactonian industry of flint tool manufacture.