Somerset Levels

The Somerset Levels (or Somerset Levels and Moors as they are less commonly, but more correctly, called) is a sparsely populated wetland area of central Somerset, England, between the Quantock and Mendip hills. They consist of marine clay "levels" along the coast, and the inland (often peat based) "moors". The area borders the Severn Estuary with its very high tidal range which used to cause marine flooding but this is now largely controlled by various sea defences. The Levels are divided into two by the Polden Hills, with the catchment areas of the River Parrett and Axe-Brue on either side. This area excludes the North Somerset Levels behind Weston Super Mare.
See more at Wikipedia.org...