River Otter, Devon River Otter, Devon The River Otter rises in the Blackdown Hills just inside the county of Somerset, England near Otterford, then flows south for some 32 km through East Devon to the English Channel at the western end of Lyme Bay, part of the Jurassic Coast, a UNESCO World Heritage Site. The Permian and Triassic sandstone aquifer in the Otter Valley is one of Devon's largest groundwater sources, supplying drinking water to 200,000 people. The river's source is north of Otterford, where a stream feeds the Otterhead Lakes: and then through Churchstanton before entering Devon. The river flows through a
Area de Conservación Guanacaste World Heritage Site marine habitats.. It formally became part of National System of Conservation Areas—SINAC in 1994, and a World Heritage site in 1999. The World Heritage site includes: Area de Conservación Guanacaste World Heritage Site The Area de Conservación Guanacaste is a network of protected areas and a World Heritage site in Guanacaste Province, in northwestern Costa Rica. The area of the national parks combined totals 1470 square kilometers as of 2004. This reflects a long-term process of growth, which started with the establishment of Santa Rosa National Park in 1971. Over several decades, surrounding lands were purchased and nearby national parks