Seven valleys, 71 glaciers, 400 summits, the Mont-Blanc massif fascinates. Doing the tour of Mont-Blanc is discovering a matchless universe that of the breathtaking and magic of the high mountains. It is sharing the eternal dream of the pioneers ; it is also discovering the intimate geography of the summits ; the rounded forms of Mont-Blanc, the ridge of Bionnassay, the black of Peuterey, the Dent du G�ant, the rock face of the Grandes Jorasses. The south and north high peaks of l'Aiguille du Tour, l'Aiguille Verte and the verticals of Les Drus. The massif is permanent show of rock, water, ice and light.