Travel to ESO Paranal

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ESO Paranal Observatory
II Región

Please note that visitors are received by appointment only.
Information for weekend visits is available here.
Media visitors please consult this page.

Paranal is the home of the ESO Very Large Telescope (VLT), located 120 km south of the city of Antofagasta and 110 km north of Taltal, in the Atacama desert.

How to reach ESO Paranal Observatory

Arriving by plane

Please note that airfares to and from Chile can get quite pricey when booking shorter than 3 months in advance. The nearest airport is Cerro Moreno, about 25 km away from Antofagasta. There is no public transport to La Paranal Observatory, so you will need to rent a car (see below).

Arriving by car

The only way to reach Paranal Observatory from Antofagasta airport is with your own transport.

Paranal is around two hours driving from the airport and the average daily cost of a rented car is about CLP 50 000 (about EUR 70). Car rental firms located at Cerro Moreno Airport include EconorentAlamoBudget and Hertz.

To reach Paranal, drive to Antofagasta, following the Costanera road, until you reach the southern exit for Antofagasta, called La Negra. Take this to join the Pan-American Highway. To the south, after around 20 minutes take the exit to the B-70 to the right and then the B-710. Take this road and keep driving for about one hour until you see the sign for ESO on the right. There is an internal map for your reference and also an external one. 

Please note that there is no gasoline station at the Observatory. You must have sufficient fuel in your car to be able to drive to your next destination.

ESO Facilities in Paranal

Accommodation and Food

ESO Hotel at Cerro Paranal, or La Residencia, provides accommodation and meals for ESO staff only. It is not possible to stay overnight in Paranal. 

Accommodation and meals are exceptionally provided in La Residencia only for especially authorized media visits. For further information on media visits please check here.


Internet cable connection is available in the rooms. Wi-Fi Internet connection is available at the lobby of the Residencia.
Phones are available in the rooms; the cost of the calls is charged to the visitor. Cell-phone signal tends to be weak or inexistent in the Observatory's area.

The Paranal Basecamp in morning light. Paranal Observatory, 130 km south of Antofagasta in Chile and at an altitude of 2600 metres, is the home of the Very Large Telescope, an array of four 8.2-metre telescopes that can observe together or individually, plus four moveable auxiliary telescopes dedicated to interferometry, making it the world’s most advanced visible-light astronomical observatory. Paranal also hosts VISTA, working at near-infrared wavelengths and the world’s largest survey telescope.
Paranal map and safety

Health & Safety

Weather and Clothing

Paranal is located on a remote site in the middle of the driest desert in the world. You may be exposed to strong winds and construction/maintenance areas. Please wear appropriate clothing such as pants, walking shoes (no sandals), sunglasses, etc. We recommend a jacket/sweater for the VLT enclosures, which are kept at 5 - 11°C. The average humidity on Paranal is only between 2 - 10%.

High Altitude Health Issues

If while staying in La Silla you experience any of the following, please report it to a local staff member immediately: acute headache, dizziness, breathing problems, ringing or blocking of ears, heart pains, acute muscular pains, seeing "stars".


  • Drink extra water or juices. Do not drink water from the faucets.
  • Alcohol is forbidden at all ESO high altitude sites, not only because of its inebriating properties, but it can increase the risk of dehydration.
  • Eat light, high-carbohydrate meals.
  • Avoid sedatives and similar medication.
  • Never use medicinal treatment instead of descending, without consulting an ESO physician or paramedic at the site.
  • Use skin protection: for example, wear clothing that covers arms and legs, and a hat; apply a broad-spectrum sunscreen of sun protection factor 35+ liberally on areas of the body not protected by clothing, and reapply it frequently
  • Use eye protection: for example, wear UV-protection sunglasses of a wrap-around design, and a wide-brimmed sun hat.

Further Information

For accommodation and meals you can either go to Taltal — located about 110 kilometres from Paranal to the south or go back to Antofagasta.

For further information on Taltal, please check its official site.

Virtual tour

Experience the ESO Paranal Observatory with ESO's Virtual Tours.