Alpine Pass Route (Via Alpina Route 1)

The Alpine Pass Route (National Route 1) is a classic trans-Swiss trek that crosses the backbone of the Bernese Oberland and the Glarus Alps. Beginning in Sargans near the Liechtenstein border and finishing in Montreux on Lake Geneva, the trail traverses 16-20 major alpine passes, including the formidable Hohtürli (2,778m) and Sefinafurgga. The route is defined by its constant verticality, offering uninterrupted views of the Eiger, Mönch, and Jungfrau massifs. While technically categorized as hiking, the cumulative ascent of over 24,000 meters and the exposure of the high-altitude pass crossings place it among the most demanding non-glacial treks in the Alps.

The trek to Laguna de los Tres is one of the primary day activities in Los Glaciares National Park, providing a close-perspective view of the granite massif of Mount Fitz Roy (3,405m). The route follows an out-and-back trail through mixed forest and glaciated valleys, passing the Piedras Blancas viewpoint before the final ascent. The journey is defined by a significant transition from the low-lying valley floor to the high-alpine environment of the lagoon, which sits directly below the main peaks.