[2] In addition to rearing livestock, fishing, and hunting wildlife, the families ran a school for their children; a lighthouse society functioned at the time.

The existing lighthouse, built in 1920, introduced a rotating gas lighting device, noted as the first of its kind in the world.

On 11 April 1918, the German Nassau-class battleship SMS Rheinland ran aground in heavy fog during World War I.

Near the island, particularly to the south, there are rocky islets and rocks, including Sundbloms Grund, Söderkläppen and Österkläppen.

Lågskär is occasionally visited by ornithologists for birdwatching,[12] and to operate a bird ringing station which was established in 1964.

[citation needed] On the island are Steller's eider (Polysticta stelleri), the key bird species, and razorbill (Alca torda).

Other breeding species recorded are: Mute swan (Cygnus olor), greylag goose (Anser anser), tufted duck (Aythya fuligula), gadwall (Anas strepera), black guillemot (Cepphus grylle), razorbill (Alca torda), guillemot (Uria aalge), water rail (Rallus aquaticus), colonies of gulls (Larus spp.

[14] The species reported include Pilayella littoralis, Ectocarpus siliculosus, Fucus vesiculosus, and Rhodomela confervoides, followed by a lesser number of Sphacelaria arctica, Cladophora rupestris, Stictyosiphon tortilis and Polysiphonia fucoides than in a previous 1950s study.