Parque Nacional Nahuel Huapi

Nahuel Huapi is Argentina's oldest national park, and that history feels tangible the moment you arrive in Bariloche and look out across the vast, glacier-fed lake that shares the park's name. The landscape shifts dramatically across its roughly 700,000 hectares — from dense Valdivian temperate rainforest thick with coihue and arrayán trees to high alpine ridgelines dusted with snow well into summer.

It is genuinely wild country, and on quieter trails you have a real chance of spotting Andean condors riding thermals above the peaks, or a family of huemul deer moving through the treeline at dusk.

What sets Nahuel Huapi apart from neighbouring parks like Los Alerces or Lanín is its sheer range of activities concentrated around an accessible hub. From Bariloche, you can hike the Circuito Chico, take the cable car up Cerro Otto for panoramic views, or in winter ski the slopes of Cerro Catedral, one of South America's largest ski resorts.

The Refugio Frey hike is a park favourite — a solid four-to-five-hour return through boulder fields to a turquoise glacial lake — and rewards the effort handsomely.

Entry fees are collected at the park administration office on Avenida San Martín in Bariloche, and rates change seasonally, so confirm costs on arrival. The park is accessible year-round, though trekking trails can be snowbound between June and September. Most trailheads are reachable by local bus or remis from the town centre, which keeps logistics simple even without a rental car.

Aim for late November through March for hiking and clear lake views, and pack waterproofs regardless of forecast — Patagonian weather changes fast.