France's largest glacier stretching 7 km down the northern side of Mont Blanc. Features an ice cave carved by hand each year, the Glaciorium museum on glaciology, and stunning views of crevasses and moving seracs. A powerful reminder of climate change as the glacier retreats approximately 30 m annually.
Full package (train + gondola + cave + museum): Adults €49.70, children €42.20, family €154. Train only: Adults €31.50
Summer (June-September) for easiest access and best weather. Allow 2-3 hours for the complete visit. Morning recommended to avoid crowds. The ice cave is rebuilt each year deeper into the glacier.
faq.subtitle Mer de Glace
Take the historic Montenvers cogwheel train from Chamonix station (20 min journey). Then a gondola descends to the ice cave. You can also hike from Chamonix (3-4 hours) or from Plan de l'Aiguille via Grand Balcon Nord.
Yes, but be prepared for 400+ stairs down to reach the ice level (the glacier retreats each year, so more stairs are added). The cave is carved by hand each year into the pure glacier ice with colored lighting. It offers a unique perspective on the glacier's interior.
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