One of Sweden's richest bird lakes. Commonly known for the amount of cranes that stop at the lake before flying on towards and from their breeding grounds. On pillars in the lake you find the visitor center Hornborgasjön, an information center including an exhibition about the lake's history and bird life. Hornborgasjön is an over 4000 hectare large nature reserve. The reserve includes mainly the lake and its shoreline, but also some of the old farmland east of the lake.