The Paine Big Circuit, also known as the O Circuit, is a 7-day adventure designed for experienced hikers seeking to explore the wildest side of Torres del Paine. Trek more than 100 km along one of the world’s classic trails, surrounded by towering granite mountains, glaciers, wild weather, otherworldly lakes, and breathtaking views of the Southern Patagonian Ice Field.
In this independent version, you’ll hike at your own pace while we take care of all the logistics, including accommodation in refugios or campsites, meals, transportation, and park entrance. You’ll also receive an offline navigation app with maps, useful tips, and key points along the route, giving you the freedom of an independent trek with the peace of mind that everything is organized in advance.
This demanding circuit requires good physical condition and a strong spirit of exploration. The route leads through remote sections of Torres del Paine, including challenging mountain terrain, making it ideal for experienced travelers looking for independence, adventure, and a deeper connection with Patagonia’s wild landscapes.
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Hike to the Base of the Towers
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Trek through the famous John Garner Pass
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Walk through the stunning French Valley
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Optional activities on Lake Grey
Day 0 - Welcome and briefing
Today, you’ll arrive at our office at Eberhard 230 in Puerto Natales for an informational meeting with your guides, the exact time will be confirmed by our Operations team. For larger groups or if you are arriving later in the day, this briefing can also take place directly at your accommodation for your comfort.
During this briefing, you’ll have the chance to meet your fellow travelers, break the ice, ask questions, and go over the itinerary in detail, including expected weather conditions, necessary gear, and all the recommendations to ensure a safe and unforgettable experience in Torres del Paine.
It’s the perfect moment to embrace the spirit of adventure, make final preparations, and start feeling the excitement of what awaits you the next day in one of the most breathtaking national parks in the world.
Your adventure this day includes:
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Briefing with your guide
Optional services
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Pre-tour accomodation
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Private transfer from Punta Arenas or Puerto Natales airport
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Public bus from Punta Arenas
Day 1 - Round-trip hike to the Base of the Towers
At 6:45 AM, you must be at the Puerto Natales Bus Terminal to board the 7:00 AM public bus that will take you directly to Torres del Paine National Park.
You’ll cross through estancias and Patagonian plains, enjoying the region’s most iconic landscapes, flora, and fauna. Be sure to have your camera ready! Upon arriving at Laguna Amarga, the main entrance to the park, you will present your park entry QR code, which is included in your program. Then, you will board a shuttle heading to the Welcome Center.
From there, you’ll walk to Refugio Central, where you can leave your luggage before beginning the hike to the Base of the Towers.
You’ll start the hike by entering the Ascencio Valley, gradually ascending until reaching the Windy Pass. This section is as stunning as it is exposed, often with strong gusts of wind, so it’s essential to follow the instructions on your navigation app to cross safely.
A few meters further ahead, you’ll reach Refugio Chileno, the last stop on the trail with bathrooms, food for sale, and internet access. Remember to bring cash if you plan to purchase anything.
From there, you’ll continue into a lenga forest, crossing small streams until you reach a scenic lookout that reveals the most demanding section of the day. The trail then climbs steeply up a massive terminal moraine, where you’ll be rewarded with the breathtaking view of the iconic Towers.
Your adventure this day includes:
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2-hour public bus in total
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20-minute shuttle
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8 to 10-hour round-trip hike, 22 km / 13.6 mi
Accommodation and meals
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Overnight in a tent (double occupancy) or in a shared dorm at Central
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Bedding included
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Box lunch
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Dinner
Optional services
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Private porter service
Day 2 - Trekking from the Towers to Serón
If the weather allows, you’ll begin your morning with the stunning orange glow lighting up the Towers at dawn. You’ll then set out on a self-guided hike through an ancient beech forest, where you might hear woodpeckers or spot fresh puma tracks along the way.
This will be one of the easiest sections of the circuit, following a well-marked trail with a gentle incline and distant views of Cerro Paine Chico. You’ll make your way to Serón Camp, located in the northeastern sector of the Park, where your pre-booked campsite will be ready for you to rest and recharge for the next day.
Your adventure this day includes
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4 to 5-hour total hike, 13 km / 8 mi
Accommodation and meals
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Night in a tent at Serón (double occupancy)
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Bedding included
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Breakfast
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Box unch
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Dinner
Day 3 - Through wildflowers and rugged peaks to Lake Dickson
Depending on the season, on your third day you’ll have the chance to admire the park’s floral beauty , from orchids and calceolarias to violets and blooming oxalis. As you hike around Lake Paine, you’ll enjoy breathtaking views of the surrounding mountains, including Cerro Escudo and Cerro Cabeza del Indio, where the profile of an indigenous figure appears naturally carved into the rock.
You’ll also spot the curved summit of Cerro Cubo and reach the stunning Lake Dickson, one of the border glaciers between Argentina and Chile. The entire route will be available in your offline navigation app, so you can feel supported and safe every step of the way.
Your adventure for this day includes:
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6 to 7-hour total hike, 18,5 km / 11 mi
Accommodation and meals
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Night in a tent at Dickson (double occupancy)
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Bedding included
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Breakfast
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Box lunch
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Dinner
Day 4 - Between mountains, rivers, and glaciers on the way to Los Perros
Today will be a day to indulge your senses with stunning sights and rich textures. You’ll trek through some of the oldest beech forests in the park, following gently rolling trails alongside the Los Perros River.
Throughout the day, you’ll be accompanied by breathtaking views of mountains, waterfalls, and lush vegetation. You’ll cross a suspension bridge over the river, leading to the base of a terminal moraine that feeds a crystalline lagoon below. From there, a final 30-minute hike will take you to your destination: Los Perros Campsite.
Tonight’s campsite is the only one on the circuit without hot showers or standard sanitary facilities such as flush toilets, so be prepared for a more rustic experience
Your adventure for this day includes:
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5-hour total hike, 13 km / 11 mi
Accommodation and meals
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Night in a tent at Los Perros (double occupancy)
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Bedding included
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Breakfast
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Box lunch
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Dinner
Day 5 - To Grey throught the mighty Jhon Garner Pass
This will be the most challenging day of the Paine Circuit, with demanding trails and ever-changing weather conditions. However, your effort will be more than rewarded with some of the most breathtaking landscapes in Torres del Paine, places seen by only a few visitors to the park.
You’ll ascend to John Garner Pass, reaching 1,200 meters (3,937 feet) above sea level, where you’ll feel the full force of the Patagonian winds and be dazzled by panoramic views of Grey Glacier and the still-unexplored peaks of the Southern Patagonian Ice Field.
From there, the trail will take you along the edge of the glacier, climbing and descending through forests of fallen trees and beneath the towering, sculpted granite walls of the Olguín Range. As you approach Grey Glacier, you may even witness a dramatic ice calving event.
Your adventure this day includes:
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10 to 11-hour total hike, 17 km / 13.6 mi
Accommodation and meals
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Night in a tent at Grey (double occupancy)
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Bedding included
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Breakfast
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Box lunch
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Dinner
Day 6 - Heading into Paine Grande
You’ll begin the day at the foot of the monumental Grey Glacier, where you’ll enjoy unbeatable views and, with a bit of luck, witness massive chunks of ice calving into the lake. On this penultimate day, you’ll have several activity options: hike to the Grey Glacier lookout, join an ice trek with crampons, or embark on a kayaking adventure across Grey Lake, paddling around icebergs and along the glacier’s face.
From there, you’ll take the trail toward Paine Grande, passing through forests and rivers while enjoying panoramic views of the vast Southern Patagonian Ice Field. As you descend, the trail will lead you to Laguna de los Patos, where you may spot southern steamer ducks.
Your adventure this day includes
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3.5-hour total hike, 11 km / 6.8 mi
Accommodation and meals
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Night in a tent at Paine Grande (double occupancy)
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Bedding included
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Breakfast
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Box lunch
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Dinner
Optional services
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Grey Glacier kayaking
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Ice hike Grey Glacier
Day 7 - To the dramatic French Valley
On your final day, you’ll take on a challenging hike into the heart of the Paine Massif. After breakfast, a winding trail will lead you to the French River.
At the entrance to the French Valley, you’ll begin a gradual one-hour ascent, where you’ll catch your first glimpse of the hanging glacier at the top of the valley, continuing until you reach the French Valley viewpoint: Le Plateau.
The return hike follows the same trail back to Paine Grande, where a catamaran will take you across Lake Pehoé. From there, you’ll connect with your pre-arranged transfer back to Puerto Natales.
Your adventure this day includes:
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7 to 8-hour total hike, 20 km / 12,4 mi
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35-minute total navigation
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2-hour total private transfer
Accommodation and meals
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Breakfast
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Box lunch
Optional services
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Accommodation in Puerto Natales for the night after the tour
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Private transfer to Punta Arenas or Puerto Natales airport
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Public bus to Punta Arenas
Dates and prices
We offer scheduled departures that will allow you to plan your adventure with complete clarity.
Season 26/27 — From October 1, 2026 to April 30, 2027
For tailor-made programs or inquiries about next season’s dates, please contact our sales team at [email protected]
Dietary Requirements & Safety Rules:
To ensure a sustainable operation in remote Patagonia, meal services follow a fixed menu designed around park logistics and shelter capacities, rather than an à la carte menu, dinners at Central, Cuernos, Francés and Dickson are served as single dishes. Grey and Paine Grande feature an assisted buffet, and Los Perros campsite provides trail rations.
Vegetarian: Options are fully guaranteed daily across all sectors.Gluten & Lactose Free: Buffets are not operational for vegan or strict diets. Non-certified gluten-free bread and lactose-free milk/cheese are available for mild intolerances only.Celiac & Severe Allergies: Facilities are not certified and cannot guarantee zero cross-contamination. For your safety, if you face life-threatening anaphylactic risks, we kindly and responsibly advise evaluating alternative packed food or alternative itineraries as remote conditions cannot safeguard these medical risks. Please contact our team beforehand so we can safely align this journey with your specific health needs.
Accommodations during the Independent Paine “O” Circuit
Exploring Torres del Paine National Park is an unforgettable experience, and the accommodation options complement the adventure. Here, we offer campsites and refuges for added comfort while you immerse yourself in the natural beauty of Patagonia.
What is included in the trip?
Our traveler’s experiences
Impeccable organization
Excellent hike, I enjoyed every minute. There were many companies doing the same trip, but I’m very happy I chose this one, as everything was straightforward when making the reservation, the itinerary details were clear, and I felt well taken care of.
What you should know
Responsible Travel
At Chile Nativo, we support the conservation and sustainable development of Patagonia. That is why for every tour booked to Torres del Paine, we donate $15 to the Torres del Paine Legacy Fund. Additionally, we collaborate with local communities, support small businesses, and sponsor two rural schools.
Responsible Travel
At Chile Nativo, we support the conservation and sustainable development of Patagonia. That is why for every tour booked to Torres del Paine, we donate $15 to the Torres del Paine Legacy Fund. Additionally, we collaborate with local communities, support small businesses, and sponsor two rural schools.