Located 674 km from the Chilean coast, this park lies opposite the Puerto de San Antonio and it was created in 1935.

The archipelago was declared a National Park by the Chilean Government and Reserva Mundial de la Biosfera, as a legacy to humanity (UNESCO 1977). The largest quantity of different endemic species of flora and fauna in the world can be found in the park.

It covers an area of 18,300 hectares, of which 9,300 belong to la Isla Robinsoe Crusoe, 8,500 to la Isla Alejandro Selkirk and 500 to the Isla Santa Clara.

It has a maritime climate with high environmental humidity. The average annual temperature is 15.4°C and its average rainfall is 1.181 mm. The wet season here is from October to February.

The sea which surrounds the Archipiélago Juan Fernández is a great attraction for those who enjoy fishing and underwater sports as it is warmer and clearer than the waters off the Chilean coast. This area provides a rich habitat for species such as lobsters, flying fish, rock salmon, cod, vidriola, moderna and pampanitos.

With regards to its flora, some native species of interest are palm trees, the small orange tree, cinnamon tree and the apple tree of Juan Fernández. Other examples are michay, murtilla, sándalo and several types of ferns.
Regarding its birdlife, of particular interest are its red hummingbird and rayadito. Most of the animals here have been introduced, such as goats, rabbits and rats. With regards to its marine life, common species are the elephant seal and lobo de dos pelos.

You can access the park by air, it has a stretch of land and sea in order to arrive at the Bay of Cumberland which is its only village.