The underground mills of Col des Roches are a fascinating and unique site. Here, huge water-powered mills were built into the natural karst caves in the 17th century. You can visit the caves and descend down to see the three levels of mill, from the giant waterwheel driven by the waters of the Bied River down to the position of the old sawmill. The audio guide, included in the ticket price and available in German, French, Italian, and English, talks visitors through the history of this fascinating site from its…
