What is the best time to visit the Carretera Austral?

December through February is the prime window for visiting the Carretera Austral, offering the longest daylight hours (up to 17 hours in December), warmest temperatures averaging 15-19°C, and all services, ferries, and national parks fully operational. February is the driest month along the route with low to moderate rainfall. However, you'll need to book lodges and ferries well in advance as this is peak season.

How long is the Carretera Austral and where does it start?

The Carretera Austral (Chile's Route 7) stretches 1,240 kilometers through Patagonian wilderness, running from Puerto Montt to the remote outpost of Villa O'Higgins. Built by 10,000 soldiers over two decades beginning in 1976, this highway connects frontier communities and passes through 10 national parks along the Route of Parks of Patagonia. Much of the road remains unpaved gravel, designed for slow travel through wilderness rather than speed.

Are ferry crossings required on the Carretera Austral?

Yes, three mandatory ferry crossings interrupt the northern Carretera Austral where fjords make road construction impossible. The longest is the Hornopirén to Caleta Gonzalo passage through Patagonian channels, taking approximately six hours with a transfer at Leptepu. Ferry crossings cost from $1-25 USD per person and should be booked in advance, especially during December through February peak season.

What wildlife can I see in Patagonia National Park along the Carretera Austral?

Patagonia National Park is home to one of the world's most successful rewilding projects where pumas, guanacos, Andean condors, and the endangered huemul deer roam freely. Roughly 10% of the global huemul population (fewer than 2,000 remain worldwide) now lives within this single park. Over 400 kilometers of ranch fencing have been removed to allow native wildlife populations to recover in the former cattle ranch turned conservation area.

What are the Marble Caves and how do you visit them?

The Marble Caves are marble monoliths on Lago General Carrera, Chile's largest lake, carved by millennia of wave action into formations called the Cathedral, Chapel, and Cave. You can explore them by kayak expedition, paddling through their swirling blue, grey, and black patterns reflected in glacial waters. Kayaking allows access inside chambers unreachable by larger boats for an intimate experience of this shifting gallery of color and stone.

How do I get to the Carretera Austral from Santiago?

You can fly to Puerto Montt (the northern start) with hourly 1 hour 40 minute flights from Santiago, operated by LATAM, Sky Airline, and JetSmart. Alternatively, fly to Balmaceda airport near Coyhaique for central access to southern highlights like Cerro Castillo and Marble Caves. Puerto Montt is also accessible by overnight bus from Santiago taking 12-14 hours.

What should I expect for weather on the Carretera Austral?

The Carretera Austral has a cool oceanic climate with unpredictable weather year-round and heavy rainfall that increases dramatically along the coast. Summer temperatures are mild, averaging 15-19°C, while winter brings temperatures well below freezing with snow blanketing the mountains from May onward. The northern sections receive up to four meters of rain annually in the Valdivian temperate rainforest.

Can I drive the Carretera Austral in winter?

Winter travel on the Carretera Austral is only suited for experienced, self-sufficient travelers with proper winter equipment and 4x4 vehicles. Most lodges, restaurants, and tour operators close for winter, with heavy rain and snow making some road sections impassable. Ferry schedules are heavily reduced and daylight is limited to 8-9 hours, though the route takes on a stark, dramatic beauty for those prepared to face the conditions.

What is special about the ancient alerce forests along the Carretera Austral?

Pumalín National Park along the Carretera Austral is home to 25% of Chile's remaining ancient alerce trees, some over 3,000 years old. These moss-draped giants grow in Valdivian rainforest where you can spot hummingbirds and endemic chucao birds. The groves were preserved through Doug Tompkins' historic land donation, which helped create the Route of Parks conservation corridor.

What makes Caleta Tortel unique along the Carretera Austral?

Caleta Tortel is a car-free village at the end of the road, connected entirely by 7 kilometers of Guaitecas cypress boardwalks built over the Patagonian fjord at the mouth of the Baker River. From here you can board boats to navigate fjords dotted with icebergs to Jorge Montt Glacier, passing the mysterious Isla de los Muertos with its 33 unexplained wooden crosses.

Chile

Carretera Austral & Aysén

Discover More

Chile › Where the Road Ends and Patagonia Begins

Carretera Austral & Aysén

Chile’s Route 7 stretches 1,240 kilometers through some of the last truly wild landscapes on Earth, from Puerto Montt to the remote outpost of Villa O’Higgins. Built by 10,000 soldiers over two decades beginning in 1976, this highway carved through terrain so rugged that communities had survived for generations accessible only by boat. Today the Carretera Austral threads through 10 national parks along the Route of Parks of Patagonia, passing ancient forests where 3,000-year-old alerce trees still stand, glaciers that calve into turquoise lagoons, and marble caves sculpted by millennia of water. The road connects frontier communities of fewer than 500 people, gaucho ranches, and one of the world’s most successful rewilding projects, where ranch fencing has been torn down and pumas, guanacos, and endangered huemul deer roam freely again.

Gallery Tours Stories Best Time to Visit Getting There

Location

Carretera Austral & Aysén

-44.5000° / -72.1000°

Carretera Austral

The 1,240-kilometer highway winds through temperate rainforest, fjords, and the Andes

Ventisquero Colgante

The hanging glacier of Queulat National Park, suspended between granite peaks with twin waterfalls plunging into the lagoon below

Marble Caves

Millennia of wave action carved these marble monoliths on the turquoise shores of Lago General Carrera

Cerro Castillo

The castle-like basalt spires rise above a turquoise glacial lagoon in one of Chile’s newest national parks

Wooden boardwalk overlooking pristine Chilean fjord surrounded by lush Patagonian forest and mountains in Aysén region

Caleta Tortel

A car-free village connected by seven kilometers of Guaitecas cypress boardwalks at the mouth of the Baker River

Pristine turquoise river rapids flowing through lush temperate rainforest in Hornopirén National Park, Chile

Ancient Alerce Forest

Trees over 3,000 years old stand in Pumalín Douglas Tompkins National Park, draped in moss and ferns

Whitewater rafting expedition on turquoise Futaleufu River with snow-capped Andes mountains and pristine forest in Chilean Patagonia

Río Futaleufú

Crystal-clear turquoise rapids carve through canyons beneath the snow-capped Andes

Pristine Patagonian landscape with snow-capped peaks, turquoise lake, and wildflower meadows in Aysén region Chile

Baker River Valley

Chile’s mightiest river flows turquoise through Patagonian wilderness toward the Southern Ice Field

Traditional gaucho horseback rider with dog overlooking turquoise lake and snow-capped Andes mountains in Chile's Aysén region

Valle Chacabuco

Guanacos graze freely in the rewilded grasslands of Patagonia National Park

1 / 9

Swipe to explore

Bespoke Travel

Experience Carretera Austral & Aysén, Your Way

Skip the standard itineraries. We'll design a journey around your interests, timeline, and travel style — with exclusive access you won't find elsewhere.

100%

Customizable

24hr

Response Time

1:1

Expert Planning

Things to Do in Carretera Austral & Aysén

Starting points for your perfect trip

Queulat Hanging Glacier Trek

Hike through primeval rainforest to see Ventisquero Colgante, a glacier perched between granite peaks. Twin waterfalls drop 600 m into a milky lagoon as Magellanic woodpeckers drum overhead in moss-covered Queulat National Park’s fjords, rivers, and dense forest.

Futaleufú River Whitewater Rafting

Ride the Futaleufú, one of the world’s top whitewater rivers. Crystal-clear turquoise rapids surge through Andean canyons. Bridge to Bridge offers Class III–IV rapids for adventurous beginners, while Macal challenges experts with Class V+. The river winds from Los Alerces through Valdivian rainfores

Marble Caves Kayak Expedition

Paddle through marble monoliths on Lago General Carrera, Chile’s largest lake. Explore the Cathedral, Chapel, and Cave formations, their swirling blue, grey, and black patterns reflected in glacial waters. Kayak inside chambers unreachable by larger boats for a shifting gallery of color and stone.

Ancient Alerce Forest Trek

Walk among 3,000-year-old alerce trees in Pumalín National Park, home to 25% of Chile’s remaining giants. Through moss-draped Valdivian rainforest, spot hummingbirds and endemic chucao, and explore groves preserved by Doug Tompkins’ historic land donation.

Cerro Castillo Glacier Lagoon Trek

Climb 1,000 m through lenga forests to a turquoise glacial lagoon beneath Cerro Castillo’s jagged basalt spires. Condors soar overhead and endangered huemul roam these autumn-red forests, reflecting in the still waters of this lesser-known but stunning national park.

Caleta Tortel & Ice Field Navigation

Explore Caleta Tortel, a car-free village on 7 km of cypress boardwalks over the Patagonian fjord. Board a boat to navigate fjords dotted with icebergs to Jorge Montt Glacier, passing the mysterious Isla de los Muertos with its 33 unexplained wooden crosses.

Ready to create something unique?

Tell us your vision and we'll make it happen

Where the Road Ends and Patagonia Begins

Stories from Carretera Austral & Aysén

A Road Carved Through Wilderness

Before the Carretera Austral existed, the Aysén region was Chile’s most isolated territory. Communities survived for generations reachable only by boat or through Argentina, with supply ships arriving as rarely as once every two months. In 1976, the Chilean government ordered 10,000 soldiers to begin carving a highway through terrain that had defeated every previous attempt: dense Valdivian rainforest, sheer granite fjords, unstable volcanic soil, and some of the heaviest rainfall on Earth.

The construction took over two decades and cost at least 25 lives. Workers built without machinery in the most difficult sections, cutting through forest and rock by hand in freezing conditions before equipment could follow. The northern section opened in 1988, and the final stretch to Villa O’Higgins was completed in 2000. Today, much of the road remains unpaved gravel, a reminder that the Carretera Austral was never designed for speed. It was built to connect a forgotten corner of a country to itself, and in doing so it opened one of the last great wilderness corridors on Earth to those willing to travel slowly.

From the Journal

Stories from Carretera Austral & Aysén

Chile’s Carretera Austral: A Complete Travel Guide

Destinations

Featured Story

Feb 14, 2026 12 min read

Chile’s Carretera Austral: A Complete Travel Guide

Twelve hundred kilometers of gravel, glaciers, and volcanic rainforest between Puerto Montt and the point where Chile simply runs out of road. The Carretera Austral is the drive that every other road trip gets measured against.

Read Full Story

Explore All Stories

Climate Overview

The Carretera Austral has a cool oceanic climate with unpredictable weather year-round, mild summers averaging 15-19°C, and heavy rainfall that increases dramatically along the coast.

Plan Your Journey

Best Time to Visit Carretera Austral & Aysén

Patagonian Summer

December – February

41–66°F Low-Moderate (40–60mm)

Peak

The prime window for the Carretera Austral. Longest daylight hours (up to 17 hours in December), warmest temperatures, and all services, ferries, and national parks fully operational. Roads are at their driest and most accessible. Wildflowers bloom in December and January. February is the driest month along the route. Glacier boat trips and remote trails are all open. Book lodges and ferries well in advance as this is peak season.

Golden Autumn

March – April

34–59°F Moderate (45–70mm)

Great

A superb shoulder season when the lenga beech forests along the entire route turn fiery shades of red, orange, and gold. Fewer travelers mean quieter trails and easier bookings. Temperatures are comfortable for hiking though nights grow cold. Most services remain open through March, with some closures beginning in April. Cerro Castillo and Patagonia National Park are particularly photogenic during autumn color. Calmer winds than summer in many areas.

Awakening Spring

October – November

32–57°F Moderate (50–80mm)

Great

Services and lodges begin reopening for the season. Snow still caps the peaks and glaciers are at their most dramatic after winter accumulation. Wildlife is active as spring arrives to the forests and grasslands. Trails can be muddy and some higher routes may remain closed into November. Daylight hours increase rapidly. A good choice for travelers who prefer solitude, though ferry schedules may be limited early in the season.

Patagonian Winter

May – September

24–47°F High (90–200mm)

Offseason

Most lodges, restaurants, and tour operators close for winter. Heavy rain and snow, limited daylight (8-9 hours), and some road sections become impassable. Ferry schedules are heavily reduced. Temperatures can drop well below freezing, and snow blankets the mountains from May onward. Only suited for experienced, self-sufficient travelers with proper winter equipment and 4x4 vehicles. The route takes on a stark, dramatic beauty for those prepared to face the conditions.

Annual Overview

Jan

59°

Feb

59°

Mar

55°

Apr

50°

May

43°

Jun

38°

Jul

37°

Aug

39°

Sep

44°

Oct

50°

Nov

55°

Dec

58°

Peak

Great

Good

Shoulder

Off-Season

Travel Logistics

Getting to Carretera Austral & Aysén

Fly to Puerto Montt (Northern Start)

1 hour 40 min from Santiago From $23 USD one-way

Hourly flights from Santiago to El Tepual International Airport in Puerto Montt, the Carretera Austral’s starting point. LATAM, Sky Airline, and JetSmart operate this route. From Puerto Montt, the highway begins with a ferry crossing at Caleta La Arena.

Insider Tip

JetSmart offers the cheapest fares. Book well in advance for December-February peak season. Puerto Montt is also accessible by overnight bus from Santiago (12-14 hours). Consider arriving a day early to explore nearby Puerto Varas on Lake Llanquihue.

Fly to Balmaceda (Central Access)

2 hours from Santiago From $30 USD one-way

The only airport mid-route, located near Coyhaique, the largest city on the Carretera Austral. Ideal for travelers focusing on the southern highlights: Cerro Castillo, Marble Caves, Patagonia National Park, and the Baker River valley. LATAM and Sky Airline operate daily flights.

Insider Tip

Balmaceda airport is 55 km from Coyhaique. Arrange rental car pickup at the airport or pre-book a transfer. This is the best option for shorter itineraries covering the route’s most dramatic sections without driving the full 1,240 km from the north.

Ferry Crossings (Required en Route)

30 min to 6 hours per crossing From $1-25 USD per person

Three mandatory ferry crossings interrupt the northern Carretera Austral where fjords make road construction impossible. The longest is the Hornopirén to Caleta Gonzalo passage through the Patagonian channels, taking approximately six hours with a transfer at Leptepu.

Insider Tip

Book the Hornopirén to Caleta Gonzalo ferry in advance, especially December through February. Arrive at least one hour before departure. Ferries operate on reduced schedules outside peak season. The crossings themselves are scenic highlights, passing forested islands and mountain channels.

Why Choose Us

Travel with EcoVoyager

The Carretera Austral begins in Puerto Montt, connected by hourly flights from Santiago. But EcoVoyager transforms this 1,240-kilometer route into a curated journey through Patagonia’s finest wilderness. Our local guides navigate ferry crossings, gravel sections, and remote park access so you can focus on the landscape. We arrange private glacier navigations, expert-led wildlife tracking in rewilded national parks, and stays at handpicked lodges and ecolodges along the route. Whether you drive the full highway or focus on key sections accessible via Balmaceda airport near Coyhaique, we handle the complex logistics that make this frontier road trip seamless.

Expert local guides for glacier navigations and wildlife tracking

Pre-booked ferry crossings and lodge reservations along the route

Private access to rewilded national parks with conservation briefings

Curated multi-day itineraries with 4x4 vehicle logistics handled