Volcán Lanín

Dominating the view in all directions along the Chilean border, the snowcapped cone of 3776m (12,388ft) Volcán Lanín is the centerpiece of Parque Nacional Lanín, which extends 150km (93mi) from Parque Nacional Nahuel Haupi in the south to Lago Ñorquinco in the north. The northern approach to Volcán Lanín, which straddles the Argentine-Chilean border, is the shortest, and usually the earliest in the season to open for hikers and climbers.

Before climbing Lanín, ask permission at the Lanín National Park office or, if necessary, from the Gendarmería (border guards) in Junín. It's obligatory to show equipment, including plastic tools, crampons, ice axe and clothing - including sunglasses, sunblock, gloves, hats and padded jackets. There's also trekking opportunities across the volcano such as the Huechulafquen trail.