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.

Located in the Jökuldalur Valley in East Iceland, Stuðlagil Canyon features one of the country's most significant formations of hexagonal basalt columns. The canyon's current appearance is a result of the Kárahnjúkar hydroelectric project, which diverted the Jökla river and lowered the water levels to reveal the geometric rock walls. Reaching the canyon floor requires hiking the East Side, which follows an 8km round-trip route along unpaved tracks. The path passes the Stuðlafoss waterfall before reaching a short, steep descent into the canyon where the basalt columns meet the river's edge.