This hike starts and ends at the parking in Alta Val Martello. Take path no. 37 and cross the suspension bridge to arrive at Rifugio Nino Corsi (2265 m). Four gorge scenes present the Plima gorge with all its beauties: trowel, panoramic crescent, observation pulpit and suspension bridge. Arrived at Rifugio Nino Corsi follow path no. 151 towards Val Madriccio/Madriccio Pass. Continue on the new hiking path no. 33 towards Val di Peder. Follow path no. 33A full of serpentines, cross the wooden bridge and follow path no. 20 and 20/A to Malga Peder-Stier (2252 m) and then path no. 35 to Malga Lyfi (2165 m). Take the Martello High Mountain Trail (path no. 8 and 39) to return to your starting point.