Lake Peipus Lake Peipus Lake Peipus (; ; ) is the largest transboundary lake in Europe, lies on the border between Estonia and Russia. The lake is the fifth-largest in Europe after Lake Ladoga and Lake Onega (in Russia north of St. Petersburg), Lake Vänern (in Sweden), and Lake Saimaa (in Finland). Lake Peipus represents a remnant of a body of water which existed in this area during an Ice Age. It covers , and has an average depth of , the deepest point being . The lake has several islands and consists of 3 parts: The lake is used for fishing
Onega, Russia limited passenger service on the Onega Bay. The Onega is served by the Onega Airport which has weekly passenger flights to Arkhangelsk and to the "selo" of Purnema on the Onega Peninsula. Close to the town, there is also an uncompleted military air base, Onega Andozero. In 2003, the Russian inland oil shipping company Volgotanker started using the White Sea-Baltic Canal for exporting fuel oil. The scheme involved delivering oil by river tanker, over the canal and into a floating transfer terminal near the Osinki Island in the Onega Bay, 36 km north-east of the port of Onega, for transfer