Opening dates : Summer 2025 - 24 may to 2 november

2025: Glacier Preservation Awareness year

At the initiative of the UN, 2025 has been declared the International Year of Glacier Preservation. The Chamonix valley is greatly affected by this problem, as it is home to the second largest glacier in the Alps and the largest in France, along with the Mer de Glace.Perched at an altitude of 1913 metres, this […]

Opening dates : Summer 2025 - 24 may to 2 november

Opening hours From 14/03 to 30/04

Open every day 10 am – 5.00 pm

Last ascent :4.30 pm
Last descent : 5.00 pm

Last departure from Chamonix to visit the ice cave : 3.00 pm

A train every hour or every 30 – or 20 – minutes depending on demand.