Opening dates : Summer 2026 - 01 june to 01 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

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;...

The shop

Don’t forget to visit the Montenvers shop before returning to the valley, where you can buy a souvenir of your excursion to this unique site!

...

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...

From 14th September to 1st November, Service will run daily from 8.30 am to 4.30 pm

  • 1st departure at 8.30am
  • Last ascent : 4.00 pm
  • Last descent : 4.30 pm
  • A train every hour or every 30 – or 20 – minutes depending on demand. 

    NB: 
    Cable car closed from 28/09 to 16/10 inclusive
    Ice cave closed from 28/09 to 01/11 inclusive