Take the cable car up to the Stoppani refuge at 2440m (a single ride ski pass is sufficient), then skin up the first section along the piste (staying on the left) almost to the upper station of the Grostè chairlift. From here, start traversing to the left on a slight descent, heading South/Southeast, aiming for the wide plain that allows you to bypass the steep slopes of Cima Grostè on the left. Upon reaching the lowest part of the hollow, begin to ascend on the right, entering a sort of inclined plane that squeezes between two rock bands (beware of hard snow, exposed section) and with a traverse allows access to the upper basin. From here, you overcome another steep rise, then you come into view of the Bocchetta del Campaniletto.

From the saddle, the descent into the couloir (45°) begins, initially narrow, then wider: once down in the chamois basin, stay close to the left walls (Castello di Vallesinella) and descend maintaining the same direction (West) also on the lower slopes. Upon entering the woods, head for the Vallesinella Alta alpine hut on the right bank of the valley, from which you follow the Sat 382 trail to the Vallesinella refuge. From here, continue on the forest road leading to the waterfalls and then descending into Val Brenta, where it joins the paved road at Prà della Casa, near the homonymous accommodation facility.