A magnificent high altitude walk along a bisse with a sumptuous views of the dam (white and red marked mountain trail).
You can visit the insides of the dam walls every Friday throughout the summer (inscription up until the evening before 17h30 at Nendaz Tourisme, +41 (0) 27 289 55 89).
Departure point the yellow sign opposite the arrival place of the chairlift at Combatseline (Siviez).
You can reach Siviez via shuttle bus from Nendaz. Reservation obligatory until the evening before until 5.30pm at Nendaz Tourisme, +41 (0) 27 289 55 89.