Originally an island, the site has been joined to the mainland by an artificial embankment and roadway, a process that resulted in the partial enclosure and desalinization of Farehammarsviken Bay (the main part of the reserve). The bay is shallow and brackish with a freshwater inflow. It contains areas of marshy vegetation and is surrounded by grazed coastal meadows. In addition to agricultural activities, the IBA supports a bird observatory.
Goose grazing is important in maintaining the open landscape. Species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (wintering) and Crex crex (passage). Three hundred and twenty species have been recorded at the site.
BirdLife International (2019) Important Bird Areas factsheet: Getterön. Downloaded from http://www.birdlife.org on 18/09/2019.