Bothnia has been situated between east coast of Sweden and west coast of Finland. Aland Islands lie in the south of the Gulf of Bothnia, between Archipelago Sea and Sea of Aland. The length of the gulf is 725 kms, it is 80-240 km wide and its average depth is 60 m. The maximum point of depth is around 290 m and the surface area is 117,000 km². The north most point of the gulf is in Tore, Bothnian Bay.
Several rivers flow into the Bothnia gulf from both the sides, including Indalsalven, Umealven, Pitealven, Tornealven, Oulujoki, Skelleftealven and Kemijoki. The water of the southern part is brackish because of the Baltic Sea but it is less saline in the north. This is because many fishes that thrive in fresh water are found in this part of the gulf. The Bothnia gulf remains frozen for more than 5 months in a year and therefore, you have to choose the time of your travel as per your own choices. This depends upon whether you want to be in the freezing temperature or not. With all this information, you will be able to plan your travel according to your own needs and preferences.
