Scheldt basin

The Scheldt ( ; ; ) is a river that flows through northern France, western Belgium, and the southwestern part of the Netherlands, with its mouth at the North Sea. Its name is derived from an adjective corresponding to Old English ("shallow"), Modern English shoal, Low German , West Frisian , and obsolete Swedish ("thin").

estuary of the Scheldt river

bay, former estuary in Zeeland, Netherlands