
Dutch wadden region
The Dutch wadden region is bordered by a row of five inhabited and two uninhabited islands. The Afsluit dike forms the solid border with the freshwater IJsselmeer. The sea dikes along the Dutch, Frisian and Groningen coast protects the sea clay regions which formed when the marshes were reclaimed into polders. The Ems-Dollard estuary lies in the east. The difference between high and low tide on the Dutch tidal flats is not much (one to two meters), whereby lots of sand and mud can precipitate. This means lots of exposed banks, which is good for seals and tidal flat birds.


