The Mer de Glace is the largest glacier in France, with a length of 7 kilometers and a depth of 200 meters and is one of the biggest attractions of the Chamonix Valley; Tourists and visitors visit it to get to know it and enjoy the wonderful views of the ice and snow scattered everywhere, and it is worth noting that it includes an ice cave, paths, and a train ride that takes you on a tour of the highest points of the region, in addition to a small museum and a restaurant.