Onega Bay of the bay there are the town of Belomorsk and the outlet of the White Sea-Baltic Canal. From the east, the bay is limited by the Onega Peninsula. In the south-east, the town of Onega is located close to the shore of the bay. Administratively, the coast and the islands are shared between Kemsky and Belomorsky Districts of the Republic of Karelia, and Onezhsky, Primorsky, and Solovetsky Districts of Arkhangelsk Oblast. Most of the minor islands, including all of Sumsky Skerries, belong to Belomorsky District. The Onega Bay coast was populated by Russians (Novgorodians, of whom the pomors are the
Lake Onega area containing the Kondopozhskaya (, depth up to ), Ilem-Gorskaya (), Lizhemskoy () and Unitskoy () bays. To the southwest of Greater Onega lies Petrozavodskoye Onego () containing the large Petrozavodsk and small Yalguba and Pinguba bays. To the east of Zaonezhye there is a bay, northern part of which is called Povenetsky Bay and the southern part is Zaonezhsky Bay. There, deep sections alternate with banks and islands which split the bay into several parts. The southernmost part of them, Lesser Onega, is deep. All the shores there are rocky. The average depth of the lake is , and