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
Port of Arkhangelsk sends and receives lumber, pulp, coal, machinery, metals, industrial and consumer goods. Arkhangelsk seaport - the main base of the Northern Company, performing the maritime transport of the White, Barents and Kara seas, the Northern Sea Route and overseas lines. Originate from Arkhangelsk regular passenger line to Murmansk, Dikson, Onega, Mezen, Kandalaksha and Novaya Zemlya. As part of the port has 3 cargo area, a container terminal, shipping company "Portoflot" sea-river station. The total length of wharfage - 3.3 km. Berths allow you to take and put handle vessels with a draft of 9.2 m and a length of 175–200