
easy
9 hours
Light to moderate fitness—able to walk short uneven stretches and handle long vehicle transfers.
Drive north from Bariloche into Nahuel Huapi National Park to stand beneath Cerro Tronador’s hanging glaciers and the striking Ventisquero Negro. This full-day tour combines accessible viewpoints, short walks on gravel roads, and a close look at the Andes’ glacial geology.
A diesel minibus eases out of Bariloche before sunrise, and the lake slides past the window like glass being pushed away. Conversation is low; cameras quiet. Within an hour the city gives way to Route 40’s long shoulder, alder and lenga forests closing in, and the first glimpses of the Andes appear—blue, granite, patient. By midmorning the road narrows to gravel and the air takes on a metallic chill: you’re in the shadow of Cerro Tronador, the mountain whose icefalls crack and roar, earning it the name "Tronador"—the thunderer.

Weather shifts rapidly—bring a warm midlayer and a windproof shell even in summer.
Sections around Pampa Linda and Ventisquero Negro are rocky and uneven—trail runners or light hiking boots recommended.
Pack at least 1–2 liters of water and high-energy snacks for the nine-hour excursion.
High-altitude sun and glare off snow require sunglasses and SPF—UV is strong even on cool days.
Nahuel Huapi National Park, established in 1934, was Argentina’s early effort to protect Andean lakes and forests; Cerro Tronador has been a landmark for Mapuche communities.
Glaciers in the region are retreating; visitors are asked to stay on trails, pack out waste and minimize impact to fragile moraine and alpine meadows.
Provide traction on gravel and rocky viewpoints around Pampa Linda and Ventisquero Negro.
Protects against sudden temperature drops and wind coming off the glaciers.
High UV and reflective glare from snow make protection necessary.
summer specific
Keeps energy up during the long day and remote stretches without services.