Day 1 — Lago di Braies → Biella / Sennes area: lake, forest, and the first high-altitude plateau
🥾 The route starts at Lago di Braies, one of the most beautiful lakes in the Dolomites. First comes a short walk along the shore, then the marked Alta Via 1 climbs through forest and rocky but straightforward trails to the high Fanes–Senes–Braies plateau. The active part of the day usually takes about 5.5–7 hours depending on whether you stay overnight at Rifugio Biella or Rifugio Sennes; expect around 11–16 km, with roughly 900–1200 m of elevation gain. Difficulty: moderate leaning toward high because of the long climb on the first day, but the route is suitable for a regular hiker without special gear: this is a popular marked trail where you do not need a helmet, harness, crampons, or climbing skills. The scenery changes gradually: emerald lake, dark conifer forest, alpine meadows, and wide views of the Croda del Becco massif. In July there may still be patches of snow on the upper sections, and in September the days are noticeably shorter and the evenings colder. In peak season, huts almost always require early booking, and access to the lake by bus and parking is regulated in advance in summer.