Llullaillaco National Park

Llullaillaco National Park protects the high-altitude Andean environment surrounding the Llullaillaco Volcano (6,739 m), one of the highest active volcanoes in the world. Located in the Antofagasta Region near the border with Argentina, the park covers 269,000 hectares of altiplano at elevations between 3,500 and 6,700 metres.

The park's most famous claim to fame is the discovery in 1999 of the Llullaillaco mummies — three perfectly preserved Inca children sacrificed on the summit around the year 1500. They are among the best-preserved mummies ever found and are now housed in the Museum of High Altitude Archaeology in Salta, Argentina. The volcano and the surrounding landscape of salt flats, lagoons, and volcanic cones remain a destination for serious mountaineers and high-altitude trekkers.

By Plane

The nearest airport is El Loa Airport (CJC, IATA: CJC) in Calama, 200 km west. From Calama, a 4x4 vehicle is required for the remaining unpaved road to the park.

By Car / Road

From San Pedro de Atacama, take Route 23 toward the Paso Sico border crossing. After 140 km, a signed turnoff leads 30 km east to the park boundary. The road is unpaved from Socaire onward and requires a high-clearance 4x4. Do not attempt the drive without a suitable vehicle, plenty of fuel, and emergency supplies. Guided 4x4 tours from San Pedro de Atacama cost CLP 80,000–150,000 per person (full day, includes picnic).

There are no public roads inside the park beyond the ranger station. Access to the volcano base camp is on foot or on a rough 4x4 track suitable only for modified vehicles with a guide. Hiking is the primary mode of exploration.

• Llullaillaco Volcano: the perfectly conical 6,739 m stratovolcano dominates the park. The summit is an extreme mountaineering objective requiring technical climbing skills and high-altitude acclimatisation.

• Salar de Llullaillaco: a high-altitude salt flat at the foot of the volcano, dotted with flamingos in the summer months (Dec–Mar).

• Laguna Llullaillaco: a turquoise glacial lagoon at 4,500 m, accessed by a short hike from the 4x4 track.

• Inca ruins: the summit sites where the mummies were found include a small stone shelter (collca) and ceremonial platforms. The mummies themselves are now in Salta, Argentina.

• Llullaillaco summit climb: an expedition-grade ascent (7–10 days, requires permits from CONAF, high-altitude experience, and a certified mountain guide).

• High-altitude day hike: a non-technical hike to 5,000 m on the volcano's lower slopes, offering views of the salt flat and the Argentine Puna.

• Flamingo watching: the Salar de Llullaillaco hosts Andean, Chilean, and James's flamingos between December and March.

• 4x4 scenic drive: a full-day tour from San Pedro de Atacama traversing the altiplano, passing the salt flats of Atacama and Socaire, and reaching the park boundary.

• Stargazing: at 4,500 m with zero light pollution, the night sky above Llullaillaco is among the clearest on earth.

No food or drink is available inside the park. All supplies must be brought from San Pedro de Atacama or Calama. A packed lunch is essential for day trips. For multi-day expeditions, carry a camping stove and high-calorie dehydrated meals.

Carry all water. There are no safe surface water sources at lower elevations — the lagoons are saline and undrinkable. At base camp (4,500 m), snowmelt streams exist in summer but should be boiled or UV-treated. Altitude sickness prevention: drink 4–5 litres per day, avoid alcohol, and ascend gradually.

The park has no accommodation. Options:

• San Pedro de Atacama base: stay in San Pedro (100 km west) and visit on a full-day tour.
• Camping: wild camping is permitted in the park only with a CONAF permit (free, obtainable in San Pedro or Calama). No facilities whatsoever — carry in, carry out.
• High-altitude base camp: mountaineers typically camp at 4,500 m on the volcano's flank before attempting the summit.

There are no shops, kiosks, or services of any kind in the park. San Pedro de Atacama is the last place to buy fuel, food, water, and camping gas.

• San Pedro de Atacama (100 km west, 1.5 hr by 4x4): the Atacama tourism hub — Valle de la Luna, Salar de Atacama, Tatio Geysers, and Laguna Cejar.
• Salar de Atacama (100 km west): Chile's largest salt flat, with the Chaxa Lagoon flamingo reserve and the Miscanti and Miñiques lagoons.
• Socaire (100 km west): a pre-Columbian altiplano village with terraced agriculture and the Socaire Church.
• Los Flamencos National Reserve (part of the Salar de Atacama basin): multi-sector reserve with salt lagoons, rock formations, and unique desert ecosystems.
• Paso Sico (border crossing, 80 km east): a high-altitude border crossing into Argentina toward the town of San Antonio de los Cobres and the Train to the Clouds.