The natural monument, also known as Friedrichshöhle, is the only “active” water cave in Germany and is named after Elector Friedrich von Württemberg.

With a length of more than 725 m known today, it was created in the Upper Mass Limestone of the Upper Jura by the Höhlenbach. Take the ferryman 70 m into the mystical interior of the earth and experience the adventure of pure geology!