Economy of Devon of the railways in the 19th century, Devon's economy has been heavily reliant on tourism. The county's economy has followed the declining trend of British seaside resorts since the mid 20th century, with some recent revival. This revival has been aided by the designation of much of Devon's countryside and coastline as the Dartmoor and Exmoor national parks, and the Jurassic Coast and Cornwall and West Devon Mining Landscape World Heritage Sites. In 2004 the county's tourist revenue was £1.2 billion. The Met Office is in Exeter as is Connaught plc, and Pennon Group, the water company. The Wrigley Company
West Bay, Dorset a World Heritage Site which stretches for and includes most of the Dorset coastline. West Bay also lies within the Dorset Area of Outstanding Natural Beauty. West Bay is sited on deposits of river alluvium that indicate a former estuary. There are beaches and cliffs on either side of the harbour. The beaches were previously of a similar size—in terms of their seaward extent—but now East Beach is considerably larger, due to accumulation of finer sediment. East Beach is also designated a Site of Special Scientific Interest, and forms one end of Chesil Beach, a barrier beach which extends southeast