In its enormous extension of 722 hectares there are many attractions. The most important are:

The sanctuary and viewpoint of the Virgin of Cerro San Cristóbal
Chile's national zoo
The historic funicular and the recently reopened cable car.
There are also squares, swimming pools, trails, picnic areas, sports areas, children's games and even an astronomical observatory. If you want to see it in all its width you can do it from the viewpoint of the Costanera Center, the highest skyscraper observatory in Latin America.

Virgin of Cerro San Cristóbal

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The statue of the Virgin of San Cristóbal Hill is an icon of Santiago visible from all over the city. This colossal 12-meter high statue was installed at the top of Cerro San Cristóbal in 1908, as part of the Sanctuary of the Immaculate Conception. At its feet there is a viewpoint that will allow you to have a wide panoramic view of Santiago and the mountain range. It is an ideal starting point to start your tour of the park. To reach the Virgin you can do it by car, on foot or by bicycle.

San Cristóbal Hill Funicular

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The funicular railway historical monument of Santiago that dates from 1925, is a comfortable, entertaining and very traditional way to climb the hill San Cristóbal. Its 500-meter route has 3 stations, the central station located at the main pedestrian entrance (Pio Nono 450), the zoo station, and the top station where you must reach if you want to visit the viewpoint of the Virgin of Cerro San Cristobal.

The funicular stations were designed by the Chilean architect Luciano Kulczewski, of whom you will see several relevant works during your visit to Santiago. A good idea is to climb to the top on the funicular and then walk down to enjoy this vegetal lung of Santiago.

To visit Santiago you must be between one and two weeks, this is because it is an area in which there are many tourist attractions that you can not miss.

Source: https://www.quehacerenchile.cl/2017/09/24/por-que-no-debes-dejar-de-visitar-el-cerro-san-cristobal/