When you reach Tetto Fustin, instead of turning towards Vernante and closing the third Stage, you can turn left and go down along the many hamlets of the Sausa Valley and then enter the Renetta Valley to go up to Tetto Colletto, and reach Colla di Prarosso (1.300 m), and from here decide whether to continue towards Robilante, completing the ring, or towards Roaschia (Gesso Valley).