The term BELGIAN RIVER refers to five rivers located in Belgium. The Yser is a river that flows through the French-speaking part of Belgium and into the North Sea. The Lys is a river that flows through the Flemish region of Belgium and into France. The Oise is a river that flows through the French-speaking part of Belgium and into France. The Brel is a small river that flows through the Flemish region of Belgium and into the Scheldt. Finally, Ostend is a port city located on the North Sea coast of Belgium.