Gulf of Bothnia and Åland Islands, Finland – May 18th, 201060.3N 20.2E
The Gulf of Bothnia is the northernmost arm of the Baltic Sea. It is situated between Finland’s west coast and Sweden’s east coast. In the south of the gulf lie the Åland Islands, between the Sea of Åland and the Archipelago Sea.
Being nearly fresh, the gulf is frozen over five months every year. The icing of the Baltic Sea begins and ends in the Gulf of Bothnia. Here, some ice is visible near the shorelines, but the rest of the gulf of mostly clear.
The gulf is 725 km (450 mi) long, 80-240 km (50-150 mi) wide and has an average depth of 60 m (200 ft, 33 fathoms). The maximum depth is 295 m (965 ft, 161 fathoms). The surface area is 117,000 km² (45,200 sq mi). The northernmost point is situated in Töre in the Bothnian Bay.