Trek Santa Cruz Province — Los Glaciares National Park, Argentina

Laguna de los Tres — the Fitz Roy Viewpoint

Patagonia's most famous day hike: about 20 km out and back from El Chaltén, ending with a savage 400-metre climb to a glacial lagoon directly beneath the granite spire of Fitz Roy.

Duration: 1 days
Distance: 20 km
Ascent: 1100 m
Difficulty: Hard
Best season: Patagonian summer November–March (December–February is peak; strong wind is possible year-round)

Fitz Roy rises 3,405 m out of the Southern Patagonian Ice Field on the Argentina–Chile border, and Laguna de los Tres is where you stand at its feet. The Tehuelche called the peak Chaltén — the smoking mountain — for the cloud that boils off its summit; the explorer Francisco Moreno renamed it in 1877 after the captain of HMS Beagle. Most days the smoke wins and you see nothing. On a clear one, this is arguably the best viewpoint in South America.

For 9 km the trail is honest and rolling. Then, from Campamento Poincenot, it turns vertical and hands you 400 metres of loose moraine in about a kilometre. That last hour is what makes an otherwise moderate walk a hard day.

Getting there. The trailhead (Sendero al Fitz Roy) is at the north end of El Chaltén, walkable from any hostel in town. Buses run to El Chaltén from El Calafate in about three hours.

Practicalities. The route sits inside Los Glaciares National Park and an entry fee applies; register at the visitor centre for current conditions. There is no water for sale on the trail, but the streams above Capri are drinkable. Start early — the light is better and the crowds are not.

Good to know:

The whole day lives or dies on weather. Locals plan by WindGuru; if Fitz Roy is socked in, swap to Laguna Torre and try again tomorrow.
Allow 8–10 hours round trip. It is a long day, not a technical one — until the moraine.
Wind is the real hazard on the exposed final climb and at the lagoon rim. Bring a shell even on a blue morning.
Camping free at Poincenot (first-come, first-served) turns this into a two-day trip and buys you sunrise, when the towers burn orange.

Day 1

El Chaltén to Laguna de los Tres and back

El Chaltén (about 400 m) → Laguna de los Tres (about 1,170 m), returning to El Chaltén 20 km ↑ 1100 m

Navigate this day

A long rolling approach through lenga forest with Fitz Roy growing ahead of you, a brutal final climb, and a glacial lagoon at the base of the granite. Then the same way home.

Segments

Out of town to Mirador Fitz Roy 3.5 km ↑ 300 m 📍 Map

Sendero al Fitz Roy trailhead, north El Chaltén → Mirador Fitz Roy

Steady switchbacks on open hillside

The steepest sustained climbing of the approach comes right at the start, switchbacking out of town above the Río de las Vueltas. Within an hour you reach the first viewpoints and get your answer about whether the mountain is out today.

About this place

El Chaltén is a small mountain village in Santa Cruz Province, Argentina. It is located on the riverside of Rio de las Vueltas, within the Los Glaciares National Park near the base of Cerro Torre and Cerro Fitz Roy spires, both popular for climbing. It is 220 kilometres (140 mi) north of El Calafate. It is also a popular base for hiking numerous trails, such as those to the base of surrounding peaks and glacial lakes, such as Laguna Torre and Laguna de los Tres.
Read more on Wikipedia ↗
Photo: David · CC BY 2.0
Laguna Capri 2 km ↑ 50 m 📍 Map

Mirador Fitz Roy → Laguna Capri

Rolling trail through lenga forest

Easy walking through southern beech forest to Laguna Capri, a small lake that frames Fitz Roy across the water. A short detour off the main trail and the classic reflection shot of the day.
The traverse to Poincenot 3 km ↑ 100 m 📍 Map

Laguna Capri → Campamento Poincenot

Flat valley trail, boardwalk over bog

Cross open moor and boardwalked bog with the whole Fitz Roy massif — and Cerro Torre off to the left — laid out ahead. Campamento Poincenot is a free, first-come forest campsite and the staging point for the climb.

About this place

Los Glaciares National Park is a federal protected area in Santa Cruz Province, Argentina.
Read more on Wikipedia ↗
Photo: Wikimedia Commons · CC BY-SA 2.0
The moraine wall 1.5 km ↑ 400 m 📍 Map

Campamento Poincenot → Laguna de los Tres

Steep loose boulders and scree

Cross the Río Blanco and start up. About 400 m of gain in roughly a kilometre of loose rock and switchbacks — an hour of pure grind, exposed to the wind. Top out on the rim and Laguna de los Tres opens below you, meltwater under the sheer granite of Fitz Roy, with Laguna Sucia hidden in the drop beyond.

About this place

Aguja Poincenot is a mountain in Santa Cruz Province, Argentina.
Read more on Wikipedia ↗
Photo: Martin St-Amant · CC BY-SA 3.0
The long way home 10 km ↑ 250 m 📍 Map

Laguna de los Tres → El Chaltén

Steep descent, then rolling trail

Pick your way back down the moraine — slower and more treacherous than the ascent on tired legs — then retrace the rolling approach. There is more uphill on the return than anyone expects. Aim to be back in town for a beer at La Cervecería.

About this place

El Chaltén is a small mountain village in Santa Cruz Province, Argentina. It is located on the riverside of Rio de las Vueltas, within the Los Glaciares National Park near the base of Cerro Torre and Cerro Fitz Roy spires, both popular for climbing. It is 220 kilometres (140 mi) north of El Calafate. It is also a popular base for hiking numerous trails, such as those to the base of surrounding peaks and glacial lakes, such as Laguna Torre and Laguna de los Tres.
Read more on Wikipedia ↗
Photo: David · CC BY 2.0