'Lake Onega' (also known as 'Onego', , ''Onezhskoe ozero'', i.e., ''Onezhskoe lake'';
Finnish/Karelian: ''Ääninen'' or ''Äänisjärvi'') is a
lake in
Russia. Its surface area is
9,894 km², its volume is
280 km³, its maximum depth is
120 m. It has 1,369 islands with a total area of
250 km². It is fed by 58 rivers, the main rivers being
Shuya,
Suna,
Vodla,
Vytegra,
Andoma. It is the second largest lake in
Europe, and the
18th largest lake by area in the world.
Petrozavodsk, the capital of the
Republic of Karelia, is situated on the western shore of Lake Onega. The republic surrounds Lake Onega in the west, north and east. In the south the lake borders the
Leningrad Oblast and
Vologda Oblast.
The
UNESCO World Heritage site of
Kizhi Pogost lies on one of the islands in the Kizhi archipelago in the northern part of the lake. Two magnificent
18th century churches are the centerpieces of this open-air museum of Northern Russian wooden architecture.
River Svir, which marks the southern boundary of
Karelia, runs from the southwestern shore of Lake Onega to
Lake Ladoga and continues in the
Neva to the
Gulf of Finland.
Sailing is a popular activity on the lake. There is a sailing club located in Petrozavodsk. The open championship of Russia for sailing in the cruiser yacht class has the status of the International Onego Regatta in the Russian sailing community. The Regatta is held by the State committee of the Russian Federation on Physical Culture and Sports and by the Federation of Sailing of the Republic of Karelia.
[1]

A wooden church on
Kizhi Island, Lake Onega.
References
1. http://www.gov.karelia.ru/Power/Committee/Sport/Regata/index_e.html