The bay of the Baltic sea in the south-east corner of the sea, between Eastern Pomerania and Kaliningrad. Many ports, Port of Gdansk, Port of Gdynia, Kaliningrad. 2 peninsulas: Hel peninsula and Vistula peninsula. The first makes Puck Bay, the latter Vistula Bay, acess through Pilawa Straits. Many coastal cities: Gdansk, Gdynia, Sopot, Pilawa, Hel. Rivers: Pregola, Vistula.