Strike warning at the Montenvers Train

Strike notice has been given for the morning of May 10, 2025, filed by the trade unions of the Régie Départementale du Train du Montenvers.

If no agreement is reached before this date, it will be impossible for customers to access the Montenvers site on Saturday May 10, 2025 from 7.30am to 12pm. The gondola lift and the ice cave will open as soon as train operations resume.

For all information about the train:

Ice Cave

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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