From 30 Nov. 2024 to 04 May 2025
CloseToday from 09:00 to 16:00
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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