Argentina // Bariloche and the Lake District

Parque Nacional Lanín

Formed in 1937, PARQUE NACIONAL LANÍN (wwww.parquenacionallanin.gov.ar) protects 420 square kilometres of Andean and sub-Andean habitat that ranges from barren, semi-arid steppe in the east to patches of temperate Valdivian rainforest pressed up against the Chilean border. To the south, it adjoins its sister park, Parque Nacional Nahuel Huapi, while it also shares a boundary with Parque Nacional Villarrica in Chile.

The park’s raison d’être and geographical centrepiece – the cone of Volcán Lanín – rises to 3776m and dominates the entire landscape. The park’s other trump card is the araucaria, or monkey puzzle tree, which grows as far south as Lago Curruhue Grande, but is especially prevalent in the northern sector of the park, an area known as the Pehuenia region. As well as the araucaria, other tree species endemic to the park are the roble pellí and the raulí, both types of deciduous Nothofagus southern beech. Parque Lanín also protects notable forests of coihue and, in the drier areas, cypress. Flowers such as the arvejilla purple sweet pea and the introduced lupin abound in spring, as does the flame-red notro bush. Fuchsia bushes grow in some of the wetter regions.

As for fauna, the park is home to a population of huemule, a shy and rare deer. Pudú, the tiny native deer, and pumas are present, but rarely seen: you’re more likely to glimpse a coypu, a grey fox or two species introduced for hunting a century ago, the wild boar and the red deer, which roam the semi-arid steppes and hills of the east of the park. Birdwatchers will want to keep an eye out for the active White-throated Treerunner, a bizarre bird with an upturned bill adapted for removing beech nuts, while the acrobatic Thorn-tailed Rayadito is another regional speciality.

The whole park can be covered in snow from May to October, and it can snow in the higher mountain regions at almost any time of year. The best time to visit is in spring (especially Oct–Nov) or autumn (March to mid-May), when the deciduous trees adopt a spectacular palette, particularly in the Pehuenia area. Trekking is possible between late October and early May, although the season for some of the higher treks is shorter, usually from December to March. January and February see an influx of Argentine holidaymakers, but in general it is less crowded than Nahuel Huapi even in high season. If you want to hike and can read Spanish, the Guía Sendas & Bosques de Lanín y Nahuel Huapi is very useful. Two reasonably reliable maps (1:200,000) accompany the guide.

The volcano, and the central sector of the park around lakes Huechulafquen, Paimún and Tromen are best accessed from Junín de los Andes, while the park’s southernmost reaches, already touched on in the box on the Siete Lagos route, and the area around Lago Lácar are best visited from San Martín – or, indeed, as part of the Siete Lagos circuit.

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  • Trekking in Parque Nacional Lanín
  • Climbing Lanín