Along the RN5, between Chaux-des-Crotenay and Entre-Deux-Mont.
Around twenty routes (grading 4 to 7) are open to free access, making the facility a unique natural introductory site. Users must have the necessary equipment to practise this sport and comply with safety standards. Helmets are essential.
Length of routes: 8 to 25 m
Direction: south-west
Level: sporty, varied: slab, pillar stop...