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
North Sea Canal in 1929 it was the largest canal lock in the world. Railway tunnels (with nearest train station on the south and north bank): Road tunnels, from east to west: The most western crossing is the road over the locks. The route depends on which of the locks is closed. Several ferries. In Amsterdam there are several across the IJ; at least one is frequent, operating 24 hours a day, free of charge. Bicyclists may only cross the canal at the locks or in the very south of Amsterdam or via ferries. Tunnels for bicyclists still do not exist. North Sea