Valle de la Luna in the Atacama Desert, explained

Valle de la Luna in the Atacama Desert is not a single canyon but a stretch of the Cordillera de la Sal, the low salt range that runs south-west of San Pedro de Atacama. Its managers put it at 13 km from the town, westward,² and Chile Travel describes it as a sanctuary of stone and salt, sculpted over millennia by wind and time into dunes, craters and sharp ridges.¹

Look closely and you see what it is made of. Chile Travel's description lists giant dunes, crusts of salt that crackle as you step on them, and clay sculpted by wind across millions of years.⁶ Walk a trail and you pass fins, towers and hollows, each a record of that slow carving, with crests of salt standing above softer slopes of clay.

In places the ground is white. That pale crust is salt, and it is thick enough that many travelers believe they are looking at snow,⁷ which is part of the valley's strange charm: a frozen look in a hot, dry desert. Admire it without breaking it off, because nothing may be taken from the reserve, not even a stone.⁸

The valley is a product of extreme dryness. Chile Travel calls the Atacama the driest desert in the world and explains why: it is trapped between the Andes and the Coastal Range, which block moisture from the Altiplano and from the Pacific Ocean.²³ With so little water, rocks that would crumble and wash away elsewhere stand for ages, and a light dusting of salt survives on the surface.

That dryness has a rhythm. From December to March, the season called the altiplanic winter sends humid air, rain and storms over the Andes near San Pedro,²⁴ and when it reaches the valley, CONAF closes the trails for rain in summer, as it does for sandstorms in winter.²⁵ The rest of the year the sky is usually clear and the light sharp.

Dryness also shapes what lives here. Most of the Atacama's life, NASA scientists found, exists as microbial colonies underground or inside rocks, because the surface has very little water and intense ultraviolet radiation.²⁶ Larger animals manage too: Chile Travel names the Chilla and the Culpeo, both foxes, along with harriers and thrushes, among the valley's residents.²⁷ If you see a fox, leave it in peace: CONAF forbids feeding or disturbing the native wildlife.²⁸

The valley is not empty land. It belongs to the territory of the Lickanantay people, better known as the Atacamenos, whose ayllus, ancestral farming oases, ring the town of San Pedro.⁵⁶ Their past is visible nearby: Chile Travel describes the Pukara de Quitor as an Atacameno fortress with more than 700 years of history, and Tulor as a settlement more than 3,000 years old.⁹

Protection came in layers. The sanctuary status dates from 1982, and the valley sits within the Los Flamencos National Reserve, its gate run by Indigenous communities together with CONAF.³ The reserve itself was created on 17 October 1990,¹⁰ and Chile Travel gives its high Andean habitats as more than 73,000 hectares.¹⁹

Today 6 communities, Coyo, Larache, San Pedro, Sequitor, Solor and Quitor, form the Asociacion Indigena Valle de la Luna,⁴ and CONAF describes the reserve as co-administered with Lickanantay communities.⁵⁷ Each sector of the reserve handles its own access, schedules and tickets,⁵⁸ which is why the valley ticket is bought on its own system rather than at a national park office.

A few Valle de la Luna facts help you plan. The valley is a protected sanctuary, so the rules are firm: no pets, no drones and no alcohol, as the official ticket page states,⁴⁶ and no fires or heat sources of any kind, which CONAF says are punished under Law 20653.⁴⁷ Visits are by day only; overnight stays are not allowed.⁶⁰

Entry is managed for the landscape's sake. Visitors go in groups of at most 12,⁶¹ the walking sectors have controlled entrances with rangers,⁶² and the paths are marked with strict limits.⁵⁰ Only marked sectors such as the great dune and the Tres Marias are open to walkers;³⁷ our route page describes every trail.

The easiest way to see it is a guided afternoon. The tour sold on this site spends 4.5 hours in and around the valley with pickup, a guided visit to the Tres Marias, a 40-minute walk and dusk on the Kari ridge, from $60. Another popular tour of 4 hours with pickup costs from $63, and both have guides who speak Spanish and English.