The Vistula Spit (Polish: Mierzeja Wiślana; Russian: Балтийская коса; German: Frische Nehrung) is an aeolian sand spit, or peninsular stretch of land that separates Vistula Lagoon from Gdańsk Bay, in the Baltic Sea, with its tip separated from the mainland by the Strait of Baltiysk. The border between Poland (Pomeranian Voivodeship) and Kaliningrad Oblast, a semi-exclave of Russia, bisects it, politically dividing the spit in half between the two countries. The westernmost geographical point of Russia is located on the Vistula Spit. The Polish part contains a number of tourist resorts, incorporated administratively as the town of Krynica Morska.