Świnoujście is a city in Western Pomerania and seaport on the Baltic Sea and Szczecin Lagoon, located in the extreme north-west of Poland. Situated mainly on the islands of Usedom and Wolin, it also occupies smaller islands. The largest is Karsibór island, once part of Usedom, now separated by the Piast Canal, formerly the Kaiserfahrt, dug in the late 19th century to facilitate ship access to Szczecin.
Świnoujście directly borders the German seaside resort of Ahlbeck on Usedom, connected by a street and 12 km of beach promenade.
Wikipedia https://en.wikipedia.org/wiki/Świnoujście
Coordinates 53°54'35.091" N 14°15'3.853" E