Via Ferrata Alpinistica Claudio Costanzi, Brenta Dolomites

From Rifugio Graffer (2,261m / 7,418 ft), follow trail O336 to the north, a section without particular challenges until Orti della Regina (Garden of the Queen), a spot so named because legend has it that a queen and her entourage came here and planted flowers and shallots. It is famous not only for this legend, but also for the fact that there are a number of boulders with some amazing fossils. From this natural terrace, head up the scree slope to a rock outcropping. Cross this outcropping along the ledge. Cross the meadow and continue on to the junction with via ferrata Vidi (no. O390).

Continue along trail no. O336, which takes you to the base of the east face of Pietra Grande and Cima Vagliana and on to Val Gelada. Climb up to Bocchetta dei Tre Sassi (2,614m / 8,576 ft), where a plaque marks the start of the Claudio Costanzi mountaineering via ferrata. Follow the trail to the north until the Val Gelada Pass (2,677m / 8,783 ft), where the next section of trail winds along Sasso Alto. Continue along the ledges equipped with cables and rungs to the east face of Cima Sassara, where a brief detour would take you to the summit and down to the Bivacco del Centenario Emilio e Settimo Bonvecchio shelter (2,790m / 9,154 ft), named after two climbers from Trentino. The Trentino region donated this site to SAT on November 12, 1972, in commemoration of the 100th anniversary of the alpine organization's founding. Reservations are possible, and there are 6 beds with bedding, but keep in mind that you will find no food or water here.

From the shelter, you can head down to a small col where the Cima Paradiso ridge begins. Head up to Cima Paradiso (2,815m / 9,236 ft) to enjoy the full 360° view. Continue along the ridge that takes you to Cima Rocca (2,831m / 9,288 ft) and then head down a chimney to Bocchetta delle Livezze (approx. 2,770m / 9,088 ft), where the via ferrata continues along the east face of Cima delle Livezze and then of Cima del Vento. From here, continue through the fields to Bocchetta del Vento, where there is a panorama that stretches out to Lake Tovel (famous because, until 1964, the lake would turn red at certain times of the year due to the algae that once grew there). Head up to Cima Tuenna (2,664m / 8,740 ft) and then continue along the ridge to Monte Benon (2,684m / 8,806 ft).

Head down to a highland that is covered in scree in certain spots and continue on to the Prà Castron Pass, where the challenging via ferrata ends and you will find a fork in the trail where you could head down to the Bivacco Costanzi shelter and then to Dimaro, or you can continue along trail no. O336 and down the east face of Sasso Rosso ("Red Rock", which gets its name from the color of the rock here and how it stands out from the rest of the Dolomites) to Selletta della Nana. From here, head down to Pian della Nana and continue on towards Malga Tassulla across the grassy meadows.

From the malga, follow the dirt road to Lake Durigal (1,870m / 6,135 ft) and then head back up along trail no. O313 to Rifugio Peller (2,022m / 6,634 ft).