Laguna de los Tres is the most iconic hike and viewpoint in El Chaltén, rewarding trekkers with a jaw-dropping panorama of Mount Fitz Roy towering above a brilliant turquoise glacial lake. The trail winds through lenga forests, valleys, and rivers before culminating in a steep final ascent that challenges even experienced hikers. At the top, the sight of Fitz Roy’s jagged granite peaks reflected in the shimmering waters makes the effort unforgettable, especially at sunrise when the mountains glow in fiery orange tones. As one of Patagonia’s most famous treks, it embodies the wild beauty and dramatic landscapes that define Los Glaciares National Park.

• Hiking time (round trip): ~ 8–10 hours

• Difficulty: Moderate to challenging (long distance and steep final ascent)

• Age limit: No official limit — suitable for fit teens and adults; younger children or elderly hikers may find the final climb too strenuous

• Seasonality: Best from October to April; accessible in winter but snow, ice, and weather make it significantly harder

• Walking distance: ~ 20–22 km round trip (depending on starting point)

• Elevation gain: ~ 750–800 m

When you reach the top viewpoint at Laguna de los Tres, you can walk just a few minutes further along a side path to the right-hand side of the lagoon. From there, you’ll find a rocky ledge that looks down into the valley below, where the vivid turquoise waters of Laguna Sucia sit surrounded by steep cliffs and glaciers. It’s not a separate full hike — rather, it’s a short extension from the main Laguna de los Tres viewpoint.

ATTENTION: The trail down to Laguna Sucia itself is not an official or maintained route and is considered dangerous; most visitors simply enjoy the dramatic overhead view from the natural balcony near Laguna de los Tres.