Piuquenes Pass (Andes Crossing)

Following the historic path used by the Army of the Andes in 1817, this 6-day trans-Andean expedition traverses the central cordillera from Mendoza, Argentina, to the Cajón del Maipo in Chile. The route crosses two significant high-altitude barriers—Portillo Argentino (4,330m) and Paso Piuquenes (4,030m). Hikers move through a high desert landscape of volcanic rock, vast glacial valleys, and the powerful Tunuyán River. The terrain consists primarily of rocky mountain paths, loose scree on the steeper pass approaches, and high-altitude plateaus where exposure to wind and sun is constant.

A journey through fire and forest. The Puyehue Traverse is a stunning multi-day route in Puyehue National Park, part of the Northern Patagonian Andes. The trek typically focuses on the ascent of the 2,240m Volcán Puyehue, transitioning from the Valdivian temperate rainforest—rich in ancient coihue trees and wildlife—to the stark, surreal scoria fields of the volcano's upper slopes. The highlight is reaching the massive, 2.5km-wide crater, which offers views over the Cordón Caulle fissure (site of a major 2011 eruption). The trek is unique for its geothermal activity, with natural hot springs (termas) providing a perfect post-climb recovery in the wild.