From the town of Vignui, take the Val di San Martino (CAI 803 trail sign), after passing through well-tended countryside, continue along the course of the Stien stream, reaching the church of San Martino. You then continue the ascent of the valley to a small car park and continue uphill to a restored calchera (furnace to produce lime); from here the steep paths allow you to climb (only on foot) the steep southern slopes of the Vette Feltrine. You return to Vignui by the same outward route.
Access: from Feltre reach the hamlet of Foen, at the exit from the town turn left to Vignui
Ground: 20% asphalt; 80% unpaved road
Didactic supports: didactic panels of the Park at the church of San Marino and along the valley