Discovery trail of the Bonnan valley

From the parking lot, go down along the road for 150 m. At the bend, go straight on the gravel track. Climb back up the valley on the right bank, pass the access to the megaphorbiaie (late-mown wet meadow) and continue on the track.
At the crossroads follow the track to the right, cross the bridge, follow the old quarry and continue on the left bank. After the tufa waterfall (! 40 m high petrified waterfall !) continue to the crossroads (beware of several routes) take left to cross the Bonnan stream and cross back to the right bank
1. Follow the meadow, continue the track passing the small huts, at the crossroads, go straight on the route taken on the way out, at the junction with the road, climb back up to the parking.