See also Saltvik, Sweden.For the prison, see Saltvik Prison.Saltvik is a municipality of Åland, an autonomous territory of Finland. The total area is 1 161,8 km², of which 150,7 km² is land, 4,7 km² lakes and 1006,4 km² sea.The archipelago north of Saltvik is perhaps the most beautiful one in Åland. Closest to land are the big islands Boxö, Sommarö, Flatö and Ryssö. Beyond, the horizon opens up and after passing Saggö it is more or less unbroken.