Beloostrov (Saint Petersburg)

 invisible, third-level administrative division

Beloostrov (Russian: Белоо́стров; Finnish: Valkeasaari; lit. 'White Island'), from 1922 to World War II Krasnoostrov (Russian: Красноо́стров, lit. 'Red Island'), is a municipal settlement in Kurortny District of the federal city of St. Petersburg, Russia, located on the Sestra River, Karelian Isthmus. Population: 2,080 (2010 Census).
Beloostrov historically consists of two parts: Novy Beloostrov (Russian: Но́вый Белоо́стров, New White Island; Finnish: Uusi Valkeasaari) along the railway and Stary Beloostrov (Russian: Ста́рый Белоо́стров, Old White Island; Finnish: Vanha Valkeasaari) several kilometers to the north, mostly belonging to Vsevolozhsky District of Leningrad Oblast under the name Sadovodstva Island (Russian: остров Садоводства). Until the Winter War Beloostrov was the last railway station before the Russia–Finland border.