Lake Syamozero Lake Syamozero Lake Syamozero (, , Karelian: "Seämärvi") is a large freshwater lake in the Republic of Karelia, northwestern part of Russia. It is located west of Petrozavodsk, the capital of the Republic, and has an area of 265–270 km². Maximum depth is about 24 m. There are a few islands on the lake. Syamozero is used for fishery, water transport and timber rafting. The lake is part of the basin of the Shuya River, which flows into Lake Onega. On June 18, 2016, 14 children died when a storm caught a tour group on the lake. Four people have
Arkhangelsk Oblast the south-west of the Oblast drains into the Kema River which belongs to the basin of the Caspian Sea. The area in the Onega River basin containing the biggest lakes in the oblast, such as Lake Lacha, Lake Kenozero, Lake Undozero, and Lake Kozhozero. The tundra of the Nenets Autonomous Okrug also contains a number of bigger lakes. The river basin of the Pinega is characteristic of the karst, with a number of caves in the region. The White Sea coast within the Oblast is split into the Onega Bay (where the Onega is the major tributary), the Dvina Bay