Cosmiques hut - 3 613 m
Located by the Col du Midi and at the foot of Aiguille du Midi, at 3613 meters above sea level, the Cosmiques hut is one of a kind. Second highest mountain hut in France after the refuge du Goûter (3 815m), it once was a laboratory for the study of cosmic rays. A night at the refuge des Cosmiques guarantees a total immersion in the high mountain world, where the sunrise and sunset are unforgettable.
A legendary run
From the very first step onto the ridge at the Aiguille du Midi, you’re immersed in an unforgettable adventure. With the highest peaks of the Alps all around you, the Vallée Blanche offers a 15 km descent and 2,000 vertical meters through the heart of the Mont Blanc glaciers — a legendary off-piste experience that starts with a short ridge walk secured by fixed ropes, and finishes with a return by the Montenvers train or, with exceptional snow, skiing all the way down to Chamonix.
On the way to the Cosmiques Hut
Walk down the Aiguille du Midi ridge, skis on the pack and crampons on your feet. Short ski descent to reach the base of the Cosmiques Hut, then about a 20-minute walk to reach the hut.
Vallée Blanche descent
Morning departure, returning to Chamonix by late morning
The group formula associates people who do not necessarily know each other. It is ideal for people looking for group friendliness and attractive prices.
⚠️ Snowboarders not accepted in group booking - private only = contact us if you are a snowboarder booking@chamonix.com
Dates for group booking
Sunday to Monday, see on-line booking
⚠️ The date displayed is the night at the Cosmiques hut
Guiding policy for group booking
Group from 4 to 6 people. 16 years old minimum accompanied by a parent
Departure for groupe booking
Departure with a minimum of 4 people
Meeting point for group booking
3.30pm at the bottom of the Aiguille du Midi (Info Point)
FREE CANCELLATION till D-3
D-2 cancellation = 50% cancellation fees
Last minute cancellation from D-1 = 100% cancellation