Description of the route

From Chateau de Champorcher, cross a bridge over the Ayasse, and take route 4h in Karlantze, which leads to Alpe Porte in the valley of Legna. From here continue along trail 4 from Outre-Lêve until you reach Ourty. Just before this recently reconstructed pasture, continue along the right branch signposted 4f which goes up the slope to the pasture shoulder and first leads to Alpe Vercoche and then to the lake of the same name.