The Tour Ronde can be most easily reached within about 1.5 hours from the Torino Hut near Pointe Helbronner, where mountaineers spend the night before leaving, usually well before dawn, to ascend the summit early the next day. Alternate and longer routes can be made from the Refuge des Cosmiques at the Col du Midi via a passage across the head of the Vallee Blanche and the Géant Glacier (or from Chamonix via the Aiguille du Midi and the Vallée Blanche Aerial Tramway). Pointe Helbronner can also be reached from the Italian side on foot or via cablecar from Courmayeur. Other even longer start or finish points include the Requin Hut above Montenvers, reached by a long but impressive glacier trek.: