After passing the built-up area of Carisolo to the north, turn left onto the Strada della Val Genova. Follow the road, which after a couple of km in summer is paid access, for about 3.5 km.
Reach the "Ponte Verde" car park adjacent to a summer information center in the Adamello Brenta Natural Park.
Continue on foot for about 400 m until you almost reach the Nardis waterfall. Just before the bridge over the waterfall, follow the trail that climbs into the woods to the right until you reach the wall.
Approach: about 20 minutes steep walk from the car park.