The long and rugged Catena d'Ambiez, which stretches South from the Cima Tosa forming the western flank of the Valle d'Ampbiez, seems to preclude any possibility of a direct link between the Agostini and XII Apostoli Mountain-Hut, situated on the opposite side. But the specially equipped "Sentiero E. Castiglioni", traversing the Boccetta dei Due Denti, satisfies this need and enables mountaineers therefore to avoid the traverse by way of the Bocca d'Ambiez. The path, however, is a very hazardous route requiring strong nerves, involving the ascent of smooth and very exposed rock-faces by means of long metal ladders (at least 10). ladder-lovers will certainly love this path!