Tags: World Heritage Site.
The Wadden Sea (Dutch: Waddenzee German: Wattenmeer Low German: Wattensee or Waddenzee 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.