By bus we go from Sesto/Sexten to Dobbiaco/Toblach and further in direction Cortina d’Ampezzo. At the bus stop Punto Panoramico Tre Cime/Dreizinnenblick (Hotel Cime di Lavaredo) we dismount. Here starts our tour. We take the path number 10-102 through the Rienz Valley, which is in the first part flat. The path is getting steeper and we arrive at the Dreizinnen hut (not open in winter). Descent: From the Dreizinnen hut across the Altenstein Valley to the Fischlein Valley and back to the Berghotel.