The Site in a glacial valley in the Bavaria region is a large, natural mesotrophic freshwater lake with fluctuating water levels, surrounded by end-moraine hills. The banks feature various types of reeds, moorland areas, scrubs and meadows. Some notable fish species present include the globally critically endangered Ammersee kilch (Coregonus bavaricus), the vulnerable char (Salvelinus evasus) and the endangered thick-shelled river mussel (Unio crassus). The Site is used for recreation, tourism and spiritual, educational, and scientific activities. Invasive species such as the spiny-cheek crayfish (Orconectes limosus) and the zebra mussel (Dreissena polymorpha) currently pose a major threat to the ecological character of the Site.