Leningrad Oblast of two great lakes of the European Part of Russia, Lake Ladoga and Lake Onega. Its northeastern part, between the Gulf of Finland and Lake Ladoga, occupies the Karelian Isthmus. Some islands in the Gulf of Finland (including Kotlin, on which the city of Kronstadt has been built) and Lake Ladoga (including Konevets) also belong to the oblast. Much of the area of the oblast belongs to the drainage basin of the Neva, which is the only outflow of Lake Ladoga. Whereas the Neva, which flows to the Gulf of Finland (the city of Saint Petersburg is located in its
Finnish Ladoga Naval Detachment Germany transferred four MAL-type ferries - "M-31", "M-32", "M-33" and "M-34" - originally intended for use on Lake Peipus, to the Finns on Ladoga. The Finnish Navy also transferred several small run-down naval vessels to the lake, the motor torpedo boats "Syöksy", and "Vinha", which were no longer in adequate condition to carry torpedoes. Lake remained mostly quiet until Soviet offensive of 1944 started. While Finnish naval forces on the lake remained passive during the Soviet landings at Tuloksa on 23 June they did play key role in facilitating the Finnish evacuations from the eastern shore of the lake Ladoga.