Anyone who wants to scale Europe's highest mountain has to climb after dark and spend the night on the mountain. It's a challenge that taxes many amateurs.
A growing number of amateur mountain climbers want to conquer the majestic summit between France and Italy. Last year alone, 25,000 people slept in the overcrowded huts on the mountainside. During high season, as many as 300 people a night start their trek to the summit. But many of them are beginners who lack the proper equipment, physical conditioning and experience.