Beloostrov (Белоо́стров; Valkeasaari; White Island), from 1922 to World War II Krasnoostrov (Красноо́стров), is a municipal settlement in Kurortny District of the federal city of St. Petersburg, Russia, located on the Sestra River, Karelian Isthmus. Population: The settlement has a railway station Beloostrov. Beloostrov historically consists of two parts: Novy Beloostrov (Но́вый Белоо́стров, New White Island; Uusi Valkeasaari) along the railway and Stary Beloostrov (Ста́рый Белоо́стров, Old White Island; Vanha Valkeasaari) several kilometers to the north, mostly belonging to Vsevolozhsky District of Leningrad Oblast under the name Sadovodstva Island (остров Садоводства). Until the Winter War Beloostrov was the last railway station before the Russia–Finland border. Beloostrov has been a key station of the Saint Petersburg-Vyborg railroad since 1870 (initially named Rayala (Rajala)) at the junction of Saint Petersburg–Zelenogorsk and Saint Petersburg–Sestroretsk–Beloostrov sections, being the final destination of many suburban passenger electric trains from the Finland Railroad Station.