The Hermannshöhle, named after Hermann Grotian, was discovered through surveying and excavations during road construction in 1866.
Further attractions of the Hermannshöhle are the Kristalskammer (crystal chamber) and the 8000 year old pillar.
Both the Hermannshöhle and the Baumannshöhle can only be visited as part of a guided tour.
For safety reasons, individual exploration is not possible. Depending on the number of interested visitors, there is a guided tour starting about every half hour. The tour through one of the caves takes about 50 minutes.