The hook
The largest salt flat on Earth, an endless blinding-white plain that becomes, when a thin film of rainwater covers it, the world's biggest mirror, so that you seem to walk across the sky, gateway to a high desert of coloured lagoons and flamingos.
01Why it's worth it
The Salar de Uyuni is one of the planet's most surreal and unforgettable landscapes: a vast expanse of salt, the remnant of an ancient dried lake, stretching flat and blindingly white to the curved horizon across thousands of square kilometres of the Bolivian altiplano at around 3,600 metres. In the dry season it is a cracked hexagonal-tiled desert of salt that plays tricks with perspective (hence the famous forced-perspective photos), studded with cactus-covered "islands" and salt-block hotels. In the wet season, a shallow layer of water turns the whole surface into a perfect mirror reflecting the sky, so that clouds and travellers appear to float in an infinite void, one of the most photographed natural phenomena on Earth. The classic way to experience it is a multi-day 4x4 tour that crosses the salar and continues into the high-altitude desert beyond toward Chile, past steaming geysers, hot springs, and a series of astonishing coloured lagoons, red, green, and white, dotted with pink flamingos and ringed by volcanoes. Cold, high, and remote, it is one of South America's absolute must-sees.
02How to experience it
Take a multi-day 4x4 tour from Uyuni (or Tupiza) that crosses the salar and continues to the coloured lagoons, geysers, and desert toward the Chilean border, often ending at San Pedro de Atacama. Time it for the dry-season salt or the wet-season mirror. Acclimatise to the altitude, and pack for freezing nights.
From the locals
Bolivians make the case by range: "I live in Santa Cruz, been to every department," one wrote. "There is everything you want to do — deserts, jungles, wetlands, mountains. Every type of terrain except an ocean." One piece of practical advice recurs and genuinely changes a budget: there is a parallel exchange market for dollars and euros that pays far above the official rate, so travellers are advised to check current rates before changing money rather than accepting the bank figure.