Mountain bike tours

Nendaz-Barrage de Cleuson Bike

Mountainbiker am Cleuson Stausee


Pedal to the turquoise waters of Cleuson while discovering stunning panoramas.




30.95 km


5:00 h


Leave from Haute-Nendaz to first reach Siviez before joining the Cleuson dam. Built between 1946 and 1951, Cleuson can hold 20 million cubic metres of water. It is a reinforced foot-hills dam standing 87 meters high and 420 meters wide at its widest point. But its reputation stems above all from its bluey-green toned waters.

Our favorites

Our favorite itineraries are part of a selection of the best routes in the region and are proposed by Valais/Wallis Promotion to best meet the expectations of our guests.

Turn-by-turn directions

Leave from the "Centre Sportif de Haute-Nendaz" to join Siviez, following the Mountainbike 129 signposts. First of all go through Tsamandon before arriving at the forestry centre. Then, leave the asphalt road to cross the forest and reach the mayens (alpine huts) of Sofleu by the route de l'Aplanie. This is the ideal opportunity to enjoy the splendid view of the Bernese Alps and the the Rhône plain. On arrival at the Siviez car park, follow the Mountainbike 134 signs. Follow the right bank of the La Printse stream in the direction of the end of the valley. At first the road is asphalt then it gradually becomes a track. Some sharp bends and a short tunnel will lead you directly to the dam, from where you can contemplate a vast panorama. Finally, cross the dam in order to admire the little chapel of Saint-Barthélémy from closer up, before going back to Haute-Nendaz.              


Haute-Nendaz (sports centre) (1339m)


Haute-Nendaz (sports centre) (1339m)

Author's recommendation

The circuit can be shortened. By parking directly at Siviez, you can reach the Cleuson dam while avoiding the Nendaz-Siviez trip. Or you can enjoy just the Nendaz-Siviez trip. This leg is especially suited to families and electric bikes.

Technical information












Best time of the year

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec


  • Scenic
  • Fauna
  • Round trip
  • Refreshment stops available
  • Cultural/historical interest
  • Flora
Getting there

Public transport

Regular bus service operates to Nendaz from Sion train station. The bus journey takes about 30 minutes. Regular connections from Geneva or Berne/Visp to Sion.


Take the A9 motorway to Sion and then the exit to Sion-Ouest towards Nendaz. You will then have a 20 minute drive (15 kilometers) following the road signs to "Nendaz" to reach the centre of the resort. 


Four different car parkings are available in Haute-Nendaz. Follow the parking instructions.


We recommend: a bike in excellent working order, a helmet, gloves and a bell, clothing suitable for the weather (always carry a waterproof), food and drink.

Safety information

Use marked bike trails and routes only, making sure you observe all signposting. Kindly close gates after passing through. Please be considerate to walkers, as well as to plants and animals. As a rule, walkers have priority. When planning, take into account participants’ fitness level and ability. All riding is at one’s own risk.

Additional information

More information 

View this tour on SwitzerlandMobility: 


The tourist office in Nendaz has a range of brochures and other informative material about mountain biking in the region.


SwissTopo Maps 1:25'000: 1306 Sion / 1326 Rosablanche


This activity is brought to you by Valais/Wallis Promotion