Fodor's Expert Review Volcán Lanín

Rising 3,773 meters (12,378 feet) in solitary snow-clad splendor on the western horizon, Volcán Lanín towers over the area and is visible from every direction. It sits on the Chilean border, with Lanín National Park on one side and Chile's Villarica National Park on the other. The closest Argentine access is from Junín, but the northern route to Paso Tromen also offers endless photo ops through the tangled branches of the araucaria trees. You can climb Lanín in three to four days round-trip with a guide.