
challenging
10 days
Good aerobic fitness with experience carrying a daypack; ability to hike 8–10+ hours on uneven terrain is recommended.
A 10-day traverse of Torres del Paine’s O circuit that links Puerto Natales to Grey Glacier and the Towers. Expect glacier views, high mountain passes, long lakeside walks and remote campsites—this trek rewards endurance with some of Patagonia’s most dramatic panoramas.
The morning air in Puerto Natales bites with salt and the promise of distance. Guides gather the group, kit rattling, maps fanned out like cards. By noon the road opens and the city is a shrinking frame; by late afternoon the first scrubby steppe gives way to beech forest and the raw silhouette of the Paine Massif rises to meet you. On this 10-day circuit—whose backbone is the full “O” route—the landscape pushes and pulls at every pace: glaciers daring you to stare, rivers steering your route, and granite horns rising like an abrupt argument with the sky.

Patagonian weather changes hourly—bring breathable base layers, an insulating mid-layer, and a waterproof, windproof shell.
Stream and lake water is drinkable but carry a filter or purification tablets—the taste and mineral load can upset sensitive stomachs.
Poles stabilize you on moraines and muddy sections; gaiters keep pebbles and mud out of boots on boggy trails.
Schedule rest after big pass days like John Gardner; long descents and lactic fatigue make subsequent 10+ hour days harder.
Puerto Natales grew as a port for sheep exports in the early 20th century; the park was designated in 1959 and expanded to protect its glacial systems.
High visitation concentrates impact—stick to marked trails, camp only in designated sites, and pack out waste; tour operators work with CONAF on sustainable access.
Protects from Patagonia’s frequent wind-driven rain and provides a wind barrier during cold passes.
summer specific
Support and grip for rocky moraines, muddy trails, and long descents.
Keeps you warm in camps that can drop to near-freezing even in summer nights.
summer specific
Required for the guided Grey Glacier ice trek; often provided by guides but verify beforehand.