
Road climb: Sion to Grande Dixence
26.6 km and 1,650 m of climbing, 6.2% on average, 10% at most, finishing at 2,141 m below the dam.

Two climbs start 28 minutes below, in Sion, and a third finishes in Thyon 2000, above Les Collons. Back at the house: the terrace hot tub and the sauna.
Sion to Grande Dixence: 26.6 km, 1,650 m of climbing, 6.2% on average, 10% at most, finishing at 2,141 m. In 2026 the dam road opened on 4 June; it is closed in winter.
Thyon 2000: about 20.5 km at about 7.7% (a media source, not the operator). Martigny to the Great St Bernard: 42.1 km and 2,046 m of climbing; bring a light for the galleries.
A hard day alternates with an easy one: after a climb, the spa or a lake by car. Never two climbs in a row.

26.6 km and 1,650 m of climbing, 6.2% on average, 10% at most, finishing at 2,141 m below the dam.
About 20.5 km at about 7.7% on average, from the valley up to the resort.

42.1 km and 2,046 m of climbing to the pass at 2,472 m; take a light for the long galleries after Bourg-Saint-Pierre.
Great St Bernard Pass: the hospice, the dogs and the climb from MartignySource: valais.ch
From Sierre up the Val d'Anniviers to the Moiry dam.
From Sion via Ayent to the Tseuzier reservoir.

12 bike routes around Thyon, 246 km in total.
Summer holiday in Valais: hiking, road climbs and lakes from Les Collons
One pass for the Nendaz and Veysonnaz lifts; your bike rides free.
Adult, 1 day: CHF 55 (summer 2026) (as of 15.10.2026)
Summer holiday in Valais: hiking, road climbs and lakes from Les CollonsSource: veysonnaz.ch
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Also nearby
Check details, prices and dates with the operator; we have not verified these places yet.
A cycling gran fondo through the Valais resorts, 10th edition.
Nothing in this group for this filter.
Drive times: drive time by car from the house or from the Les Masses chairlift, calculated 15.10.2026; “about” marks an estimate. In the mountains and in winter, add 15–30%.
A house for 12 in Les Collons: 5 bedrooms, a terrace hot tub that runs all year and an infrared sauna. The Les Masses chairlift is 1.8 km by road.
The house has a garage for 1 car. For a whole group’s bikes, ask us before booking.
From our list: Martigny to the Grand-Saint-Bernard, 42.1 km and 2,046 m up to the pass at 2,472 m.
28.08.2027, the 10th edition. Check the entry fee with the organiser.