Aysén — Chilean Patagonia

The Aysén region is shaped by glaciers, fjords and volcanic activity. The landscape is a mixture of Patagonian steppe in the east and dense Valdivian rainforests in the west. Fjords carve deep into the mainland, creating thousands of islands, straits and hidden coves. Elevation ranges from sea level to Andean peaks over 4,000 meters high.

The Northern Ice Field (Campo de Hielo Norte) covers nearly 4,000 km² and is the largest glacier mass in the Southern Hemisphere outside Antarctica. Dozens of glacial tongues flow from it into fjords and lakes. The San Rafael Glacier, accessible from a lagoon of the same name, is one of the world's lowest-elevation glaciers — its terminus breaks into seawater just 200 meters above sea level.

Weather is variable and influenced by Pacific storm systems. Annual rainfall reaches 3,000–4,000 mm in the west, with the eastern part considerably drier. Summer (January–March) brings temperatures of 10–18 °C and the longest days. Wind is a constant companion — average speeds around 30 km/h are not uncommon.

Four seasons can alternate in a single day. Morning might bring sunshine, noon brings rain, afternoon brings an icy wind from the Andes, and evening clears again. Locals say that whoever can't tolerate Patagonian weather can't tolerate Patagonia. Proper clothing and a flexible plan are keys to a comfortable stay.

Valdivian temperate rainforests rank among the planet's oldest ecosystems. They are dominated by alerce trees — living for over 3,000 years. On land, you'll find pudu (the world's smallest deer), Andean condors, huemul (South Andean deer featured on Chile's national coat of arms) and dozens of endemic bird species. The ecosystem remains largely untouched due to the region's isolation.

In the fjords and channels live colonies of South American sea lions, Chilean dolphins and Peale's dolphins, with occasional visits from humpback whales and southern right whales. The seafloor is covered with giant kelp forests that create an underwater ecosystem comparable to coral reefs. Ornithologists record over 200 bird species here, including albatrosses, cormorants and fishing eagles.

The Carretera Austral is a 1,240 km highway running from Puerto Montt in the north to Villa O'Higgins in the south. Construction began in the 1970s under Augusto Pinochet's regime and took over 20 years. Much of it remains gravel to this day, and it's interrupted in several places — ferries form part of the route.

The road passes by the turquoise General Carrera Lake (Chile's largest), through the town of Coyhaique and along the Baker River — the most water-abundant river in Chile. It's considered one of the world's most beautiful highways and attracts thousands of cyclists and adventurers annually.

The main gateway to the region is Balmaceda Airport (BBA) with direct flights from Santiago (about 2.5 hours). From there it's an hour's drive to Coyhaique, the region's capital. From Coyhaique, roads lead to Puerto Aysén and the port of Puerto Chacabuco, from where you can continue by ferry or boat. Many places in the region are accessible only by water or small aircraft — this very isolation is what makes Aysén exceptional.

The thermal springs of the Aysén region spring up in the heart of the Valdivian rainforest — one of the oldest temperate rainforests on the planet. Volcanic activity in the Andean belt has created dozens of hot springs with temperatures ranging from 35 to 50 °C. Indigenous peoples came here for the healing properties of the water, and the spa tradition continues today.

Some thermal springs are commercially operated, while others lie deep in the rainforest accessible only on foot or by boat. Bathing in hot water surrounded by ancient Valdivian rainforest trees, where the only sounds are cracking branches and birdsong, is one of Aysén's defining experiences. Some springs sit right on fjord shores — you bathe in hot water while gazing at glaciers.

The region's original inhabitants were the Chonos — nomadic canoeists who for thousands of years navigated the fjords and channels in wooden boats (dalcas). To the south lived the Kawésqar, masters of survival in one of the planet's harshest climates. Both peoples were decimated by European diseases and colonization in the 18th–19th centuries. Today, only a handful of Kawésqar descendants remain in the settlement of Puerto Edén.

Chilean colonization of Aysén began only in the early 20th century — much later than the rest of the country. First settlers came via the Argentine pampas, since there was no road from the Chilean side. They founded small estancias (ranches) and made their living herding sheep and cattle. Settlement was accompanied by extensive forest fires — thousands of hectares of rainforest were deliberately burned to create pasture.

The capital, Coyhaique, was officially founded only in 1929. The region remained isolated from the rest of Chile for a long time — the road connection via the Carretera Austral wasn't completed until the 1980s. This late integration is one of reason why Aysén has retained its wild character.

The Aysén region has 17 protected areas covering over 50% of its territory. Queulat National Park is famous for the hanging glacier Ventisquero Colgante — a glacier lobe hanging over a cliff with two powerful waterfalls plunging into a turquoise lake below. It's accessible via a short trek from the Carretera Austral.

Laguna San Rafael is home to the eponymous glacier, which calves directly into a marine lagoon. It's one of only a few glaciers in the world accessible by boat from sea level. Cerro Castillo Park offers dramatic granite towers resembling a castle and one of Chile's best multi-day treks. In recent years, Patagonia Park was added — an ambitious project by American philanthropist Doug Tompkins connecting private and state lands into a vast nature reserve around the Chacabuco River.

Other significant protected areas include the Cerro Castillo National Reserve, Isla Magdalena National Park with dense forests and fjords, and the Lago Las Torres National Reserve. Most parks are freely accessible with no entrance fees — unlike the crowded Torres del Paine to the south.

The cuisine of the Aysén region is built on seafood and lamb. Centolla (king crab) is a local delicacy — served fresh, boiled in seawater, right on the boat or in small restaurants in Puerto Aysén. Erizos (sea urchins) are eaten raw with lemon and are a gastronomic experience for many travelers.

Cordero al palo — lamb roasted on a cross over an open fire — is the traditional dish of Patagonian ranch hands. Preparation takes 4–6 hours and results in crispy, juicy meat with a smoky aroma. Curanto is another traditional dish: seafood, meat and potatoes cooked in a pit on hot rocks, covered with leaves.

Recent years have seen a craft brewery scene flourishing in Coyhaique, and local producers are beginning to process wild herbs, mushrooms and forest fruits. Calafate (barberry) is an iconic Patagonian fruit — local legend says whoever tastes it will return to Patagonia again and again.

Aysén is a paradise for outdoor lovers. The Baker River and Futaleufú River rank among the world's best for rafting and kayaking — Baker for its water volume, Futaleufú for technical difficulty. Sea kayaking in fjords and channels offers intimate contact with nature — paddling between glacier walls, around seal colonies and under waterfalls.

Trekking in the region is wilder than in touristically developed parts of Patagonia. The Cerro Castillo circuit (4 days) is the most popular, but dozens of unmarked trails lead to valleys, glaciers and mountain lakes. Fly-fishing on Aysén's rivers and lakes attracts anglers from around the world — the trout and salmon here reach impressive sizes in crystal-clear water.

Glacier treks on the Northern Ice Field are experiences for advanced adventurers. Boat trips to the San Rafael Glacier, where you watch ice calving into the lagoon, rank among South America's most spectacular natural shows. In winter (June–September), you can ski near Coyhaique — the small El Fraile ski resort offers runs with views over the endless Patagonian landscape.

The best time to visit is November to March (Southern summer). January and February are the warmest months with the longest days — the sun rises before 6 am and sets after 10 pm. December and March are quieter and cheaper, with still-pleasant weather. Winter (June–August) is cold and rainy, but offers empty roads and snow-covered landscapes.

Clothing must account for four seasons in one day. Layering is key: thermal underwear, fleece or a insulating layer, and a waterproof, windproof jacket. Quality hiking boots are essential. Sunglasses, high-SPF sunscreen and a cap are necessary even in summer — UV radiation in Patagonia is intense due to proximity to the ozone hole.

The region is safe — crime is minimal. Mobile signal works in Coyhaique, Puerto Aysén and along the main road, but coverage is zero outside towns and in the fjords. A satellite communicator is recommended for longer wilderness excursions. ATMs are scarce in the region — it's good to always carry cash in Chilean pesos.