Onega Bay Onega Bay The Onega Bay () is located in the Republic of Karelia and Arkhangelsk Oblast in Northwestern Russia, west of the city of Arkhangelsk. It is the southernmost of four large bays and gulfs of the White Sea, the others being the Dvina Bay, the Mezen Bay, and the Kandalaksha Gulf. The area of the bay is . The Onega Bay is long and - wide. The average depth of the bay is , and the maximum depth is . The bay freezes in winter. Onega, Kem, and Vyg Rivers flow into the bay. The bay has numerous islands.
Lake Onega of Karelia (about 270,000 citizens) founded in 1703 by Peter I to exploit the natural ore deposits. Petrozavodsk area contains a large number of historical monuments, such as Architectural ensemble Round Square (end of 18th century) and gymnasium building of 1790. The embankment of Lake Onega contains a series of sculptures, many of which were presented as gifts from the twin cities. Kondopoga is known from 1495 and contains the Uspenskaya (Assumption) Church built in 1774. This construction is one of the tallest wooden churches of the Russian North. There are two carillons in the city, with 23 and 18