The Vex bisse has been an integral part of our heritage since... 1453! Somewhat neglected in the second half of the 20th century, it was restored to working order in 1989, much to the delight of hikers. Very well maintained and monitored throughout the summer season, this walk enchants all its visitors. From Les Collons, descend to Les Mayens-de-Sion. Follow the bisse to Veysonnaz. Take the cable car to Thyon 2000 and then walk down to Les Collons. The section between Les Mayens-de-Sion and Veysonnaz is particularly wide and therefore very popular with families with pushchairs (all-terrain). The first part of the path has been levelled, allowing wheelchair users to travel halfway along the route. With assistance, the second half is also possible, although less easy. The Veysonnaz cable car is open from the end of June to the end of August.