Things to Do at Mer de Glace

The Mer de Glace (Sea of Ice) is France's largest glacier and one of the most spectacular natural attractions in Chamonix. Stretching 7 kilometers long and reaching depths of up to 200 meters, this magnificent glacier flows down from the northern slopes of the Mont Blanc massif. The glacier has been a source of fascination for visitors since the 18th century, inspiring writers, artists, and mountaineers with its otherworldly beauty and constantly changing ice formations. Reached by the historic Montenvers Railway, a charming red cogwheel train that has been operating since 1909, the Mer de Glace offers visitors an unforgettable journey into the heart of the Alps. The site features not only impressive views of the glacier itself but also educational exhibits about glaciology, climate change, and the history of mountaineering in the region. Despite retreating significantly due to climate change, the glacier remains a powerful testament to the forces of nature and continues to captivate thousands of visitors annually.

The Mer de Glace is accessed exclusively via the Montenvers Railway from Chamonix. The train station is located at 35 Place de la Mer de Glace in Chamonix-Mont-Blanc, easily walkable from the town center or accessible by local bus. The cogwheel train departs regularly throughout the day and takes 20 minutes to reach the Montenvers station at 1,913 meters altitude. From there, a cable car and steps lead down to the glacier level. Free parking is available near the train station, though spaces fill quickly during peak season.