
challenging
4 days (approx. 48–60 hours of hiking across days)
You should have strong cardiovascular fitness and be comfortable hiking 6–10+ hours on consecutive days with steep ascents and rocky descents.
A concentrated version of the classic W circuit, this 4-day self-guided trek delivers Las Torres, the French Valley, and Grey Glacier with efficient transfers from Puerto Natales. Expect long days, variable weather, and unforgettable granite-and-ice views.
You step off the bus in a spray of wind and sunlight, the gravel crunching underfoot as the map in your hand flaps like a small flag. Ahead, granite towers push into the sky — raw, angular, and indifferent — while the pampa rolls away in short grass and low shrubs. Over four days you’ll thread yourself through the classic “W”: the ascent to Las Torres base, the shorelines of Nordenskjöld, the French Valley’s hanging glaciers, and the peeled-blue face of Grey Glacier. Each day moves from wide-open steppe to beech forest to knife-edge ridgelines; the landscape keeps changing its mood as you walk.

Begin Day 1 well before sunrise to avoid peak winds and ensure daylight for the steep final ascent to the base viewpoint.
Wind, rain and sun can cycle in minutes—use a breathable base layer, insulating midlayer and waterproof shell.
Streams provide potable water but use a lightweight filter or purification tablets to avoid stomach issues.
Camp gear is included, so bring a comfortable daypack with rain cover, snacks and a compact first-aid kit.
The park was formally protected in the mid-20th century as Chile recognized the unique geology and ecosystems of the Magallanes region; guiding and small-scale ranching shaped routes that became trails.
Heavy visitation has pressured trails and fragile vegetation; follow marked trails, use permitted campsites, and pack out all waste to minimize impact.
Support and traction for rocky climbs and wet trails.
Quick-drying layers let you adapt to rapid weather changes.
Reduce strain on knees during long descents and give stability in wind.
Reliable access to stream water cuts weight and lowers risk of illness.