The Grand Combin is, with its more than 4314m, one of the highest summit in the Alps. The icy massif is surrounded with the Val d’Entremont on the West, the Col du Grand Saint Bernard on the North, the Val de Bagnes on the East and the artificial lake of Mauvoison. The area is located at the frontier with Swiss and Italy. The starting point of our activities in the city of Ollomont. This small locality is at the foot of the Grand Combin.