Landscape features include moraine ridges, fluvio-glacial channels, and tundra polygons. The rich communities of breeding birds include waterbirds and raptors. The site supports several mammal species. Ramsar site no. A large, shallow marine bay fringed by meadows and deciduous forests with many islands.
Marine currents help keep the area ice-free for long periods during the winter.
The area supports an important fishery. Human activities include livestock grazing, boating, and swimming. Continuation of traditional grazing is important for maintaining the ecological character of the meadows. Ramsar site no. Stockholm, outer archipelago.