The Atacama Desert — Mano del Desierto, San Pedro and the Driest Place on Earth

The Atacama Desert is one of those places where every superlative the guidebook applies — driest on Earth, clearest skies on Earth, oldest desert on Earth — turns out, on close inspection, to be more or less true. It runs for about 1,000 kilometres along the Pacific coast of northern Chile, sitting between the Andes to the east and the cold Humboldt current to the west, with pockets that have not received measurable rainfall in recorded human history. It contains the highest geyser field in the world. The largest single salt flat in Chile. The dustiest, clearest, darkest skies on Earth — the reason ALMA, ESO and a dozen other observatories choose the Atacama over almost everywhere else.

It is also home to one of the most photographed pieces of land art in South America: the **Mano del Desierto** — a five-metre concrete-and-iron hand emerging from the sand 75 kilometres south of Antofagasta, sculpted by the Chilean artist Mario Irarrázabal in 1992 and standing in absolute isolation by the side of the Pan-American Highway.

Where to base yourself

Two main bases for visiting the Atacama:

**San Pedro de Atacama** is the small adobe village in the Salar de Atacama region, at 2,400 m altitude, on the eastern side of the desert at the foot of the Andes. It is the standard base for travellers — full of hostels, hotels, restaurants, agencies running every desert excursion. Population around 5,000 outside tourist season; the streets are unpaved, the buildings are mud-brick, the church is white-washed seventeenth-century, and the night sky is the second-best you will ever see.

**Antofagasta** is the larger coastal city to the west, the regional capital, and the standard staging point for the **Mano del Desierto** which lies just outside it. Most travellers stop in Antofagasta only briefly — to fly in or out, or as a stop on the long Pan-American journey south — and base their actual desert days in San Pedro.

A 4–7 day itinerary that combines both:

- **Day 1:** Fly to Antofagasta (Cerro Moreno airport), drive south to the Mano del Desierto, photograph at sunset, return to Antofagasta for the night. - **Day 2:** Drive (or fly the short hop) to Calama, transfer to San Pedro de Atacama. Acclimatise at altitude. - **Days 3–6:** Day-trips from San Pedro. - **Day 7:** Transfer back to Calama, fly home.

The Mano del Desierto

The Mano sits 75 km south of Antofagasta on the Pan-American Highway, in the middle of nowhere. There is no signage other than a small layby; you watch the kilometre markers and look out the right-hand window. Approach by car (rented in Antofagasta) or as part of a day tour from the city.

The sculpture is five metres high, partially buried in the sand so that it appears to be reaching up out of the desert. The Chilean artist Mario Irarrázabal designed it as a meditation on human vulnerability and isolation; the desolate setting does most of the work. Most visitors spend an hour walking around it, photographing from different angles, then drive on. Sunrise and sunset are the best light. Sadly, the hand is regularly defaced by graffiti — the local council periodically restores it. Do not contribute.

San Pedro de Atacama — what to do in five days

San Pedro is base camp for the central Atacama desert experience. The agencies on the main street all sell variants of the same six or seven excursions, and most travellers do four or five of them over a 4-night stay. The standards:

**The Salar de Atacama — Laguna Chaxa.** Half-day trip to the salt flat south of San Pedro and the small lagoon at Chaxa where three species of flamingo feed. Crystallised salt formations underfoot, blinding white surface, three kinds of flamingo doing their slow, weird filter-feeding dance. Best in the late afternoon when the light goes golden.

**Valle de la Luna.** The "Valley of the Moon" west of San Pedro — a basin of eroded salt-and-mineral rock formations that turn pink, orange, gold and purple at sunset. The half-day excursion bumps you up to a viewpoint to watch the sun go down over the Andes. Pack a jacket.

**El Tatio Geysers.** A long pre-dawn trip — leave San Pedro at 4 a.m., drive to 4,300 m, watch the world's third-largest geyser field at sunrise (when the temperature differential is greatest and the geyser plumes are tallest), bathe in the small thermal pool, return to San Pedro by mid-morning. The altitude is no joke — drink water, walk slowly, take coca leaves if offered.

**The Altiplano Lagoons.** A full-day trip up to 4,200 m to see the high-altitude lakes — Lagunas Miscanti and Miñiques — with snow-capped volcanoes mirrored in turquoise water. The drive itself is half the experience; the lagoons are surreal.

**Stargazing.** This is what you came for. The Atacama at night is the closest most travellers will come to seeing the Milky Way as our ancestors saw it — vast, three-dimensional, full of features your eyes have never resolved before. SPACE Observatory in San Pedro runs guided night tours with telescopes; the experience is led by an astronomer and includes hot chocolate, which sounds incongruous and is in fact essential.

Practical considerations

**Altitude.** San Pedro is at 2,400 m. Most excursions go to 4,000 m or higher. Take it gently for the first day. Drink water. Coca tea or coca candy helps. Avoid alcohol the first night. If you have known altitude problems, talk to your doctor before going.

**Weather.** The Atacama is sunny and dry by day, cold by night, with extreme temperature swings between the two. Layers, sunscreen, hat, sunglasses, lip balm, water bottle.

**Money.** Pesos and US dollars both work in San Pedro. ATMs exist but go down regularly; bring a backup.

**Internet.** Patchy, slow, expensive in San Pedro. Most hotels have wifi but it strains under load. Plan to be offline for parts of each day.

Combining with Bolivia and the Uyuni salt flats

A popular extension: a 3- or 4-day overland tour from San Pedro across the Bolivian border to **Salar de Uyuni**, the world's largest salt flat. The route takes you over the high altiplano with stops at Laguna Verde, Laguna Colorada, the geysers of Sol de Mañana and the Salvador Dalí desert, ending at Uyuni in Bolivia. Multi-day shared 4WD tours run year-round; agencies in San Pedro book them. Pack warm clothes — temperatures at 4,500 m get well below freezing at night.

When to visit

The Atacama runs year-round. The best months are March–May and September–November — the shoulder seasons — when daytime temperatures are pleasant, the altiplano roads are reliable, and the tour buses are thinner. Avoid January–February if you can: the **Bolivian winter** brings rain to the altiplano and can flood parts of the Uyuni salt flat (which makes for spectacular reflective photographs but cancels several tours). June–August is high season for stargazing, with the longest dark nights and clearest skies.

For more on travel in the region, browse our [South America stories](/category/south-america) and our broader [overland travel](/blog) hub. The Chilean tourism site at [Sernatur](https://www.sernatur.cl/) and the [European Southern Observatory](https://www.eso.org/) public pages both have useful background on the desert and its science.

The Atacama is the Chile trip that most travellers come for and almost none regret. Five days. Layers. Water. A camera. The Mano in the sand, the flamingos in the salt flat, the geysers at dawn, the Milky Way at midnight. There is no other landscape quite like it.