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

The Mer de Glace : a giant

Located on the northern slope of the Mont-Blanc massif, the Mer de Glace is the largest glacier in France. Almost 7 kilometres long and covering an area of about 40...

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!

...

Opening dates : Summer 2026 - 01 june to 01 november

In May and June, take advantage of our great deals

30% off on your return ticket and the ice cave excursion on selected Mondays and Wednesdays in June

Opening hours From 05/23 to 03/07

Open every day 8:30 am – 5.00 pm

Last ascent : 4.30 pm
Last descent : 5.00 pm

1st departure at 8.30am. 9.00am train optional (depending on numbers)
A train every hour or every 30 – or 20 – minutes depending on demand.

NB:

Last departure from Chamonix to visit the ice cave : 3.00 pm