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This winter, experience Montenvers - Mer de Glace. The train opens on 30 November and the ice Cave on 21 December 2024.

Ice Cave
From 30 Nov. 2024 to 04 May 2025
Closefrom 10h00 to 16h00

The Ice Cave

Dive into the heart of the glacier

Once at Montenvers, take the gondola to access to the Mer de Glace glacier

Once you've reached Montenvers from Chamonix by cog railway, a new adventure awaits you: a gondola lift will take you to the Mer de Glace glacier.

Please note: Access to the cave is by staircase, with around 170 steps.

PRM access is not possible.


An ephemeral work of art

Every year, the "grottus" sculpt a veritable masterpiece in the ice. The ice walls sparkle, revealing incredible shades of blue. It's an intense sensory experience that will leave a lasting impression

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The famous little red train takes passengers from Chamonix (1035 m) to the Montenvers station (1913 m) in 20 minutes. On arrival, the view of the Mer de Glace is breathtaking, bearing witness to the effects of climate change.

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