Wadden Sea

The Wadden Sea (Dutch: Waddenzee, German: Wattenmeer, Low German:Wattensee, Danish: Vadehavet, West Frisian: Waadsee) is an intertidal zone in the southeastern part of the North Sea. It lies between the coast of northwestern continental Europe and the range of Frisian Islands, forming a shallow body of water with tidal flats and wetlands. It is rich in biological diversity.
The UNESCO World Heritage Committee decided on June 26, 2009 to enrol the Wadden Sea in the list of Cultural and Natural Heritage.
en.wikipedia.org/wiki/World_Heritage_List