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 Panoramic

A moment suspended in front of the Mer de Glace The restaurant Le Panoramique offers a unique experience in the heart of the mountains, with its vast panoramic terrace and...

The Temple of Nature

In 1779, Lord Blair, an English gentleman, finds himself caught in a storm in the Montenvers. The shelter under the stone was so uncomfortable that he had a hut built...

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...

Opening dates : Summer 2025 - 24 may to 2 november

Dimanche 22 juin

 Horaires spéciaux

En raison d’un accueil groupe de plus de 600 personnes en matinée du dimanche 22 juin, l’accueil du public sera aménagé selon le programme de circulation suivant :
– Pas de départ possible sur le train de 9h00,
– Perturbation du service jusqu’au train de 10h30,
– Reprise du trafic normal à partir du train de 11h00.

En vous remerciant de votre compréhension.