Świnoujście is a city and seaport on the Baltic Sea and Szczecin
Lagoon, located in the extreme north-west of Poland. It is situated mainly on
the islands of Usedom and Wolin, but also occupies smaller islands, of which
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 (Stettin).
Świnoujście directly borders the German seaside resort of Ahlbeck on Usedom,
both are freely connected by a street and by 12 km (7 mi) of beach
promenade.