Lake Pehoé and the Paine massif, Torres del Paine, Patagonia

Torres del Paine
O Circuit

The full loop around the Paine massif in Chilean Patagonia: eight days on foot past glaciers, turquoise lakes and the famous granite towers, from the wild northern side to the classic W.

Next departure
20–27 Feb 2027
Duration
8 days
Highest pass
1,200 m
Difficulty
Demanding — eight days in a row, with one 10–12 h day over the pass
Daily stages
11 to 25 km
Highest point
John Gardner Pass, 1,200 m
Accommodation
Campsites, double tents with sleeping bag and mat
Team
Two Thin Air team leaders
Start & finish
Puerto Natales, Chile
Trip Highlights

The whole of Torres del Paine, not just the W

Most visitors only walk the W. The O adds the quiet northern side of the park, where you can walk for hours without seeing anyone, and the crossing of the John Gardner Pass above the Grey Glacier.

Hiker at sunrise facing the Cuernos del Paine
  • The three towersSunrise light on the granite towers at the Base Torres viewpoint, on the last day.
  • John Gardner PassThe highest point of the trek, looking over the Southern Patagonian Ice Field.
  • Glaciers & lakesDickson, Los Perros and Grey glaciers, and the turquoise lakes Pehoé and Nordenskjöld.
  • The French ValleyHanging glaciers on Paine Grande and the granite walls of the Cuernos.
  • Everything organisedCampsites, meals, park entry and transfers from Puerto Natales, with two Thin Air team leaders.
Day by Day

The full itinerary

Eight days from Puerto Natales and back, anticlockwise around the massif — tap each day to expand it.

DAY 1 Puerto Natales – Serón 15 km · about 4.5 h
Day 1 · Puerto Natales — Serón

Early bus from Puerto Natales into Torres del Paine National Park. After registering at the park, we start walking north through open meadows along the Paine River to Serón. Night: Serón camp.

DAY 2 Serón – Dickson 19 km · about 6.5 h
Day 2 · Serón — Dickson

A long day through rolling hills and wetlands on the quiet northern side of the park, past Lake Paine, to Dickson, with the Dickson Glacier and the mountains along the border with Argentina in view. Night: Dickson camp.

DAY 3 Dickson – Los Perros 12 km · about 5 h
Day 3 · Dickson — Los Perros

Up the Los Perros river through dense forest, listening for Magellanic woodpeckers. The trail climbs a large moraine to reveal the Los Perros Glacier and its turquoise lagoon. Night: Los Perros camp.

DAY 4 Over the John Gardner Pass to Grey 18 km · 10–12 h · pass 1,200 m
Day 4 · Los Perros — John Gardner Pass — Grey

The hardest and most rewarding day of the circuit, with a very early start. Through forest, roots and mud, then up loose rock (sometimes snow) to the John Gardner Pass (1,200 m), the highest point of the trek, facing the Southern Patagonian Ice Field. A steep descent alongside the Grey Glacier, past the Paso ranger station and over suspension bridges to Grey. Night: Grey camp.

DAY 5 Grey – Paine Grande 11 km · about 4 h
Day 5 · Grey — Paine Grande

A shorter day along the shore of Lake Grey, with views back to the glacier and its icebergs, to Paine Grande on the edge of Lake Pehoé. Here the O joins the W trail. Night: Paine Grande camp.

DAY 6 French Valley – Cuernos about 25 km · 7–8 h
Day 6 · Paine Grande — French Valley — Cuernos

Past Lake Skottsberg to Italiano camp and up the French Valley to the French and Británico viewpoints, surrounded by hanging glaciers on Paine Grande (2,884 m) and the granite walls of the Cuernos. Back down to Italiano and on to Los Cuernos. Night: Cuernos camp.

DAY 7 Cuernos – Central 12–15 km · about 5 h
Day 7 · Cuernos — Central

Along the turquoise Lake Nordenskjöld, crossing streams beneath Mount Almirante Nieto (2,670 m) and keeping an eye out for condors, to the Central sector at the foot of the Ascencio valley. Night: Central camp.

DAY 8 Base Torres – Puerto Natales about 20 km · 8–9 h
Day 8 · Base Torres — Puerto Natales

Up the Ascencio valley and a final boulder field to the Base Torres viewpoint (about 900 m), facing the three granite towers above their glacial lake. Back down to the Welcome Center and transport to Puerto Natales, arriving in the evening.

The Fine Print

What’s included

INCLUDED

  • Transfers from Puerto Natales to the start of the trek and back
  • All meals during the trek
  • Double tents with sleeping bag and mat at every campsite
  • Park entry permits
  • Two Thin Air team leaders
  • Personal advice and help with all your travel logistics
  • Full gear list and travel recommendations

NOT INCLUDED

  • International and domestic flights
  • Travel insurance
  • Hotel in Santiago or Puerto Natales
  • Personal hiking equipment
  • Other personal expenses
  • Changes to the itinerary due to weather or force majeure, or anything not listed as included
Reviews

What our travelers say

V
Voytek Getler
★★★★★ Google

An outstanding experience with Thin Air Trips! Isa and the team brought so much care, enthusiasm and professionalism to the whole adventure. Their thoughtful planning, clear communication and attention to detail made everything feel smooth and well organised, allowing me to relax and enjoy the experience.

What stood out most was the personal approach. Isa was approachable, helpful and always happy to answer questions. You could really feel her passion for the mountains and her commitment to making the trip special.

A fantastic team that I would happily recommend to anyone looking for a memorable trekking or mountain adventure. Thank you, Isa and Thin Air Trips—I would love to join you again!

D
Diana Padilla
★★★★★ Google

I’ve now travelled with Thin Air Trips twice — to Torres del Paine and Kyrgyzstan — and both trips were absolutely incredible. Two very different destinations, but equally unforgettable adventures!

One of the best things about travelling with them is that they take care of everything. From planning the itinerary to organising accommodation, transport and all the logistics along the way, they make the whole experience feel easy. There’s so much that goes into organising trips like these, and having it all managed means you can relax, enjoy the adventure and focus on the places you’ve come to explore.

Torres del Paine was spectacular, and Kyrgyzstan was another amazing experience, with breathtaking mountains and landscapes that will stay with me for a long time. Both trips gave me so many special moments and memories that I’ll always treasure.

For me, the real value of Thin Air Trips is being able to experience these extraordinary destinations without the stress of coordinating everything myself. You get all the excitement of an adventure, with the reassurance that the details are taken care of.

The fact that I booked a second trip after my first probably says it all! I would happily travel with them again and highly recommend them to anyone looking for a well-organised, memorable adventure. An easy five stars!

F
Fernando O
★★★★★ Google

Fuimos con ellos al Ararat y todo perfecto, organización de 10, muy buena comunicación antes y durante el viaje, y muy buenos guías. Repetiremos!

S
Sinji W
★★★★★ Google

I had a fantastic experience travelling to Russia to summit Mt Elbrus. Isa has been really communicative and helpful. I had a lot of hestitations about travelling to the region, but all went smooth and the entire trip was amazing. The team on ground were also just as professional and helpful, really helping to take off the logitical pressure and allowing me to focus on the summit.

E
ELENA A.A.
★★★★★ Google

Espectacular!!la ruta , la organización , la gente…repetiré sin duda!

A
Alicia Marquez
★★★★★ Google

Viaje top y equipo mejor aún!

Chile · Patagonia

Torres del Paine O Circuit — reserve your spot

NEXT DEPARTURE · 20–27 FEBRUARY 2027
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Eight days around the Paine massif from Puerto Natales, with campsites, meals and park entry included. Want other dates or a private trip with your own group? Ask Isa.

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Good To Know

Frequently Asked Questions

How hard is the O Circuit?

It is a demanding trek: eight days in a row, with stages of 11 to 25 km and one very long day over the John Gardner Pass (10–12 hours). No technical skills are needed, but you need very good fitness and to be used to walking several days in a row.

Where do we sleep?

In the park’s campsites, in double tents with sleeping bag and mat included. All meals during the trek are included too.

What is the weather like in February?

February is summer in Patagonia, with long days. Even so, the weather changes fast: strong wind, rain and even snow are possible on any day, so good waterproof layers are essential.

What happens if the weather is bad on the pass?

Park rangers can close the John Gardner Pass when conditions are bad, and we always follow their instructions and our team leaders’ judgement. In that case the itinerary is adapted.

How do I get to Puerto Natales?

Fly to Punta Arenas and take the bus to Puerto Natales (about 3 hours), or fly to Puerto Natales when there are seasonal flights. You need a hotel in Puerto Natales the night before the trek starts.

Do I need to book anything myself?

No: the campsites, park entry and transfers are arranged by Thin Air. You only book your flights and your hotel in Puerto Natales.