Opening dates : Summer 2025 - 24 may to 2 november

The Cave

Dive into the heart of the glacier and discover an ephemeral work of art.
An ephemeral work of art that the Claret family has been maintaining and renewing for 3 generations (1st cave dug in 1946)

After reaching Montenvers from Chamonix, by cogwheel train, a new adventure awaits you: Take the gondola from Montenvers station to access the Mer de Glace glacier and visit the man-made ice cave.
In the bowels of the glacier: an original collection of ice sculptures. The cave has to be recut every summer because the glacier advances 70m every year.

Attention: Access to the cave is by stairs, about 170 steps.
No PRM access.

Other activities

The Restaurant du Montenvers

LEGENDARY LUNCH FACING THE DRUS In the heart of the mythical Refuge du Montenvers, let yourself be carried away by the authenticity of a high-altitude restaurant. Enjoy lunch on the...

The bar des glaciers

Would you like to cool off after a descent of the Vallée Blanche or regain your strength after a long hike?The Bar des Glaciers is a must-see break before heading...

Hiking and walks

In winter, two magnificent snowshoe walks are mapped out. The routes are easy to meet, with a duration of about fifteen minutes, and ‘under the viaduct’, lasting about 45 minutes;...

Opening dates : Summer 2025 - 24 may to 2 november

Horaires d'ouverture

Du 22 novembre au 13 mars

Ouverture tous les jours de 10h00 à 16h30 
Départ du 1er train : 10h00
Dernière montée : 16h00
Dernière descente : 16h30 
Un train toutes les heures, ou toutes les 30, ou 20 minutes, selon affluence.

Télécabine et grotte de glace ouvertes.
Dernier départ pour visiter la grotte de glace à 14h00 ou 14h30, suivant la fréquence des trains.