Deltawerk Grevelingendam

The Grevelingenmeer is a former estuary of the North Sea and the largest saltwater lake in Western Europe. The lake is located between the islands of Goeree-Overflakkee and Schouwen-Duiveland, on the border of South Holland and Zeeland. As part of the Delta Works, the Grevelingenmeer has been cut off from the sea by the Grevelingendam (1965) and the Brouwersdam (1971) and the estuary has become a lake. The lake is a Natura 2000 protected area.