Oder River

The Oder (know in Polish as the Odra) river flows from Silesia into the Baltic Sea north of Stettin, Pomerania -- more exactly it flows into a bay called Grosse Haff. North-west of the Haff is the Usedom Peninsula and north-east is the Wollin Peninsula. These two peninsulas are almost completely connected with only a very narrow passage way going in between out to the bay of Pomerania, which is a part of the Baltic Sea.