Already 20,000 years ago the Bear cave in Sonnenbühl-Erpfingen was inhabited, whereof bone findings of rhinos, cave lions and bears evidence.
The Bear cave in Sonnenbühl-Erpfingen and the Fog cave in Sonnenbühl-Genkingen lead to the world of stalagmites and stalactites, and of cave bears. In the function of a Geopark info centre they show visitors the fascinating realm of depth of the Swabian Alb.