It was established in 1983 and covers 500 sqkm of land areas, Archipelago National Park The National Park is regulated by these Finnish laws: Lag om Skärgårdshavets nationalpark (645/1982) and förordningen om Skärgårdshavets nationalpark (1123/1994) and the national park's rules and regulations a huge land area considering that the area mostly is outer archipelago with few islands even 1 km 2 - and the big ones are inhabited and mostly privately owned and thus not part of the national park.