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 at present. Cargo on Lake Onega amounts to 10–12 million tonnes per year with about 10,300 ship voyages. Lake shores contain two ports (Petrozavodsk and Medvezhyegorsk), 5 wharves (Kondopoga, Povenets, Shala, Vytegra and Ascension ()) and 41 piers. Fishery is an important activity on the lake. About 17 species are being fished commercially, mostly European cisco, smelt, whitefishes, roaches, burbot, pike-perch, perch, ruffe, carp bream, lake salmon, pike and somewhat less ide, graylings, common dace, common bleak and crucian carp. Whereas there is no regular passenger service on the lake, there are several tourist trips per day along the routes