The Herisson river originates from the Saut Girard, which is fed by the waters of Lake Bonlieu and Lake Ilay. Classified as a “large natural site”, the valley of waterfalls, also known as Herisson (hedgehog) Valley is definitely worth a visit during your stay in the Jura and will amaze young and old alike. Situated between Ilay and Doucier this valley extends over 3 kms.
These waterfalls are incredibly rich in natural heritage and are the pride of this region.
Wander along the wooded paths and discover the 7 waterfalls that mark the route. The two most beautiful of them, the Grand Saut and the Éventail, are over 60m high. Near the the Éventail is a museum dedicated to the visual splendour of the waterfalls and the history of the valley.