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Alberto de Agostini National Park and the End of the Andes

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A little-known protected area in the very south of Chile, the Alberto de Agostini National Park is the third largest in the whole country, covering an area of 5,637-sq. miles (14,600-sq. km). It takes its name from the Italian priest of the Salesians of Don Bosco order, Father Alberto María de Agostini, who drew up maps, took valuable photographs of the Magallanes region and worked alongside the local indigenous people.

A region characterized by labyrinthine channels, plunging glaciers and pristine evergreen rainforests, it is only accessible by boat and is considered to be one of the most untouched parts of Patagonia.

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What makes the Alberto de Agostini National Park unique?

Alberto de Agostini National ParkIt’s where the Andes Mountains finally meet the ocean

The Alberto de Agostini National Park marks the final point of the Andes Mountains: the longest continental mountain chain in the world. Spanning the entire length of South America, they start in Venezuela in the north and cover 4,300-miles (7,000 km) before they finally plunge into the ocean here in the Alberto de Agostini National Park.

At this point, they are known as the Cordillera Darwin (or Darwin Mountains) and they are so inaccessible that they were only first fully crossed in 2011 by a French expedition team. Mount Darwin, one of the highest peaks in this mountain range, acquired the name in honour of Naturalist Charles Darwin who was passing through the region as part of his five-year voyage on the HMS Beagle.  

It contains spectacular, barely accessible glaciers

The most famous of the Alberto de Agostini National Park’s glaciers is the tidewater Marinelli Glacier, which spills from the Darwin Mountains and the Darwin Ice Sheet into Ainsworth Bay. Although it is currently retreating, this stunning glacier can be viewed from trails traversing the land around the bay.

Glacier Alley, a passage through the Chilean fjords lined by a series of impressive tidewater glaciers, is also located in the Alberto de Agostini National Park. Named after European countries (including Spain, France, Holland, Germany and Italy), these glaciers flow from the Darwin Mountains into the ocean. The ‘calving’ of ice from their termini – viewed from the safety of a cruise ship – is an unforgettable sight.

Alberto de Agostini National ParkThe Águila (“Eagle”) Glacier flanks the Agostini Fjord (or Agostini Sound) and the scenery in this part of the national park has been compared with the landscapes of Tierra del Fuego National Park. To arrive at the glacier, a Zodiac boat must be landed on shore; visitors can walk close to the foot of the glacier which hangs above an aquamarine, glacial meltwater lagoon.

It contains a rare ecosystem comprising pristine flora and fauna

In 2005, the Alberto de Agostini National Park was designated a UNESCO Biosphere Reserve thanks to the singular characteristics of its ecosystems. One of the main features of the park which merited its inclusion in the UNESCO list is the subpolar Magellanic forest found here and which began to grow around 10,000 years ago when the glaciers formerly covering the area began their retreat.

These Magellanic forests share plant families with temperate forest ecoregions in New Zealand and Australia, but the Alberto de Agostini National Park’s colder climate makes it less rich in plant life than the milder Valdivian forests which are found further north in Chile

Alberto de Agostini National ParkThe fauna here is also impressive, with beavers, elephant seal colonies, the southern pudú (the world’s smallest deer) and the endangered southern river otter making up some of the most interesting wildlife species. Andean condors can sometimes be spied circling above land.


How to access the Alberto de Agostini National Park

The only way to gain access to this fragile environment is via cruise ship. Tours allow close interaction with an incredible national park which marks one of the last uninhabited places remaining on Earth.

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