Seaton, Devon Seaton, Devon Seaton () is a large seaside town, fishing harbour and civil parish in East Devon on the south coast of England. It faces onto Lyme Bay and is historically part of Axmouth (to the east) and Beer (to the west). A sea wall provides access to the mostly shingle beach stretching for about a mile, and a small harbour, located mainly in the Axmouth area. Seaton sits on the long Dorset and East Devon Coast World Heritage Site, more commonly known as the Jurassic Coast. From here it is possible to visit rock strata dating from three geological
Geology of Dorset around the Dorset and Devon border, although these may have been transported here with the other river deposits. Chesil Bank a long barrier beach stretching from West Bay to Portland, was created 10,000 years ago, when sea levels rose at the end of the last ice age. The Variscan orogeny is the oldest event for which there is evidence in Dorset, forming a major series of thrust faults in Carboniferous and older rocks. These thrusts trend west–east, dip moderately towards the south and have controlled later basin development and subsequent phases of inversion. During the Permo-Triassic the area was affected