Mer de Glace ice cave

The ice cave features a network of tunnels carved into the glacier, displaying frozen formations and revealing the internal structure of the Mer de Glace.

The cave opened to visitors in 1863, marking the beginning of glacier tourism in the Chamonix valley and establishing a tradition of alpine exploration.

Inside the cave, visitors discover exhibitions about traditional alpine life, glaciology studies, and the relationship between mountain communities and glacial environments.

Access requires a 20-minute train journey from Chamonix to Montenvers station at 1913 meters, followed by a gondola ride and 170 steps down to the entrance.

The cave requires annual reconstruction due to glacial movement of 70 meters per year, creating different layouts and features each season.

Location: Chamonix-Mont-Blanc

Inception: 1863

Elevation above the sea: 1,760 m

Website: https://montblancnaturalresort.com/fr/montenvers-mer-de-glace

GPS coordinates: 45.92877,6.92257

Latest update: June 23, 2025 09:43