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Mudflat hiking (Danish: Vadehavsvandring, Dutch: Wadlopen, West Frisian: Waadrinnen, German: Wattwandern) is a recreation enjoyed in the Netherlands, northwest Germany, Denmark, England and France. Mudflat hikers are people who, with the aid of a tide table, use a period of low water to walk and wade on the watershed of the mudflats, especially from the Frisian mainland coast to the Frisian Islands.
The Wadden Sea, a belt of the North Sea, is well suited to this traditional practice. Belts of this shallow sea lie off the mainland of the Netherlands, between Friesland and the Frisian Islands; off the coast of northwestern Germany; and off the coast of southwest Jutland in Denmark.
In the Netherlands, mudflat hikers can walk from the mainland to Terschelling, Ameland, Engelsmanplaat, Schiermonnikoog, Simonszand, and Rottumeroog. Other mudflat hiking routes are known but are not recommended, either because of their inherent dangers (the correct path is difficult to follow and/or there are insufficient margins of error in timing the trip) or for the minimization of ecological disturbance, or both.
In Germany, mudflat hikers can walk to the East Frisian Islands of Norderney, Baltrum,...
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