From Cursolo, at the crossroads of S00, descend to Airetta on the SS631 of the Val Cannobina; go along it for 6/700 m and descend to Ponte Teia on the Cannobino torrent; from here, passing next to Sasso Durone, you go up to Gurro at the crossroads of S01.
Datos de la ruta de los colaboradores de OpenStreetMap, con licencia ODbL.