Baltic Sea Gulf of Riga, and the Bay of Gdańsk. The Baltic Proper is bordered on its northern edge, at the latitude 60°N, by the Åland islands and the Gulf of Bothnia, on its northeastern edge by the Gulf of Finland, on its eastern edge by the Gulf of Riga, and in the west by the Swedish part of the southern Scandinavian Peninsula. The Baltic Sea is connected by artificial waterways to the White Sea via the White Sea Canal and to the German Bight of the North Sea via the Kiel Canal. Administration The Helsinki Convention on the Protection of the
White Sea–Baltic Canal Bay near Megostrov Island; it was later captured by Finnish troops. On December 5, 1941, Finnish troops entered Medvezhyegorsk. On December 6, 1941, in a -37 °C frost, Finnish troops captured Povenets, the southern entrance to the White Sea–Baltic Canal. On the same day, Soviet troops started demolishing canal structures. Lock No. 1 was the first to be blown up. By the morning of December 8, Locks No 1 to 6, and dams No. 4 and 20 had all been demolished. At the same time heavy fighting took place in the area of the Povenets Lock Ladder (Locks No. 1