Underground Mills of Col-des-Roches
A historic underground mill site in a natural cave, featuring hydraulic installations from the 16th to 19th centuries. The permanent exhibition covers regional history, milling techniques, and hydropower, with interactive exhibits and a photography collection. The site also houses the Musée d'histoire du Locle.
Families and Kids
Children aged 6 to 16 can visit with a reduced ticket. The cave temperature is 7°C and humidity can be high; warm clothing and good shoes are recommended. Birthday parties and creative workshops for children are offered.
