The Site includes a system of intertidal shallow waters including a sheltered bay (Mellandsvågen) and mussel and seaweed beds; extensive mudflats; salt marshes, wet meadows and mires; and rocky outcrops bordering a 1,000-hectare wildlife protection area. More than 140 different plant species have been recorded. The Site’s location makes it important for migrating birds, in particular geese, ducks and waders that feed, rest, moult or winter there. Various nationally threatened species are present, such as the Atlantic puffin Fratercula arctica, the velvet scoter Melanitta fusca, the common tern Sterna hirundo and the otter Lutra lutra. Human activities include recreation, birdwatching and fishing.