Atacama Desert 3-day itinerary

Wake at 4am and drive 95km north of San Pedro to Geysers del Tatio (4,320m), the world's highest geyser field. Arrive at first light when thermal activity peaks — dozens of fumaroles blast steam columns into the freezing air (-10°C at this hour) while the rising sun turns the surrounding altiplano amber. Wade into the small thermal pool (bring a swimsuit) for one of the most surreal experiences in South America. Tour operators charge around $30 USD including transport.

Return to San Pedro and rest through midday — the Atacama sun at 2,400m is brutal. In the late afternoon, head to Valle de la Luna in the Los Flamencos National Reserve (entry ~3,000 CLP). Walk through a landscape of eroded salt and clay formations that genuinely resembles a lunar surface. Climb the Gran Duna — a massive sand dune — for panoramic views of the Cordillera de la Sal mountain chain glowing terracotta in the pre-sunset light.

Stay in Valle de la Luna for sunset, when the salt formations turn vivid shades of pink, orange, and purple as the sky darkens. The Atacama has zero light pollution — within 30 minutes of sunset the Milky Way becomes visible overhead with extraordinary clarity. The desert sits at one of the world's driest, clearest atmospheres, making stars appear three-dimensional. Most tour groups leave at sunset; staying to stargaze from the dune is the reward for independent travellers.

Drive south from San Pedro to Laguna Chaxa in the heart of the Salar de Atacama — South America's largest salt flat after Salar de Uyuni. Three species of flamingo — Chilean, Andean, and James — feed in the shallow, mineral-rich lagoons. Arrive at 8am when the birds are most active and the salt crusts reflect the morning sky. The adjacent salt flat stretches 3,000 square kilometres to the horizon, a blindingly white expanse broken only by pink mineral pools.

Visit Toconao, a quiet whitewashed village 37km south of San Pedro built almost entirely from liparita volcanic stone, which gives every building a pale golden glow. The 18th-century church tower is particularly photogenic. Walk the Quebrada de Jerez — a narrow canyon with a year-round stream, tamarisk trees, and fig orchards that feels impossibly lush against the surrounding desert. Local women sell weaved goods and preserved cactus fruit at small market stalls.

Book a professional stargazing tour from San Pedro (around $40 USD) — the Atacama's 300-plus cloudless nights per year and extreme dryness make it home to some of the world's most powerful observatories, including ALMA. Guides use high-power telescopes to show Saturn's rings, Jupiter's moons, and nebulae invisible to the naked eye. The Southern Cross, the Magellanic Clouds, and a Milky Way so dense it casts shadows are visible without any instrument at all.

Take a full-day tour (or self-drive 4WD) south-east to the altiplano lagoons of Miscanti and Miñiques at 4,200m — two brilliant turquoise lakes ringed by volcanic peaks including the near-perfect cone of Volcán Miñiques (5,910m). Vicuñas graze the surrounding pampas grass, and flamingos gather at the lake edges. The scale is staggering — sky, water, snow, and endless high-altitude plain with not another soul in sight.

On the return route, stop at Piedras Rojas — the Red Rocks — where wind erosion has carved a field of deep-red volcanic boulders beside a white salt lagoon and a sky-blue pool of mineral water. The view is one of the most photogenic in the entire Atacama. Nearby, Volcán Licancabur (5,916m) rises as a symmetrical stratovolcano on the Bolivian border — the crater lake near its summit is one of the world's highest. A fitting backdrop for the journey's final hours.

Back in San Pedro de Atacama, explore the compact Adobe town centre with its low mud-brick buildings, artisan market, and lively main street. Visit the Museo Arqueológico Gustavo Le Paige (2,000 CLP) to see pre-Columbian mummies and atacameño ceramics. End the trip at a rooftop bar with a pisco sour — Chile's national cocktail of pisco, lime juice, and egg white — watching the last desert light fade on Licancabur as the stars take over.