The Comba dei Fossali has water flow al year round, but in summer its water volume decreases significantly. Recommended in spring and after rainfall, when other canyons in the valley may be impassable.

The Comba dei Fossali has water flow al year round, but in summer its water volume decreases significantly. Recommended in spring and after rainfall, when other canyons in the valley may be impassable.

From the main Valsesia road, take the steep uphill turn to the right toward Ramello. Then turn right again following the signs for Frasso. Continue along the road through two hairpin turns, and at the third one, park the car.

From here, take the dirt road closed by a gate and follow it for about 15 minutes until you reach a concrete bridge with a bench — this is the entry point into the stream.

A small canyon with 12 rappels; in late summer, water flow is minimal. From the entrance, a 5-minute walk along the slippery riverbed leads to the first rappel (C15). Continue walking to reach C10, anchored to a tree in the center. Below are two small slides, then continue outside the stream along a path that follows it for about 10 minutes. From the third rappel onward, the descent becomes continuous, with a beautiful sequence ending in a C30 featuring a suspended pool to be crossed. Further down are additional rappels, including one with a handline (MC) and an awkward stance — beware of strong rope friction a few meters below. The pool beneath allows for several possible jumps. A few more rappels bring you back out onto the main Valsesia road at the hamlet of Molino Nuovo. Total duration: about 3 hours.