Salinas Grandes

Salinas Grandes is a vast salt flat spread across the border of Salta and Jujuy provinces, a dazzling plain of white crust at roughly 3,400 metres above sea level, covering more than two hundred square kilometres. The journey to reach it is half the adventure. From Purmamarca the road climbs the Cuesta de Lipan, a series of tight switchbacks that rise above four thousand metres before dropping to the plain, with sweeping views over the Quebrada de Humahuaca on the way up. On arrival the landscape changes completely: a horizon-to-horizon sheet of salt, bordered by brown mountains and a hard blue sky, with the surface crackled into hexagonal patterns. Local Indigenous communities, who have harvested salt here for generations, still cut blocks and collect salt by hand from shallow pools called ojos de sal, where the brine shows turquoise beneath the crust. Visitors can walk on the firm surface, watch workers and photograph the endlessly flat horizon, which is perfect for forced-perspective pictures. A typical day tour from Salta pairs the salt flat with Purmamarca, making a full day with a high-altitude highlight.

It helps to know what you are looking at. The salt flat is the dried remnant of an ancient lake in a closed Andean basin, where mineral-rich water has evaporated over thousands of years and left layers of crystallised salt. The harvest is traditional: workers use simple tools to cut salt into blocks or rake it into piles, then load it onto trucks for sale. Some tours include a short stop with a local family or cooperative, where you can see how the work is done, buy small salt souvenirs and sometimes taste regional snacks.

The salt flats are also part of a wider conversation about lithium extraction in the high Andes, and local communities have debated how mining might affect water and livelihoods. A good guide will explain this context respectfully, and visitors should treat the area with care, staying on marked surfaces and taking nothing but photographs.

Preparation is key. The sun at this altitude is intense, and the white surface reflects it back, so sunglasses, a hat and strong sun cream are essential, even in winter. Wear closed shoes because salt crust can be sharp and wet patches are corrosive, and avoid carrying anything you would not want to get dusty. Altitude can cause headaches or breathlessness, particularly after the climb from Purmamarca, so move slowly and drink water.

Photography fans should bring a small toy or object for perspective shots, and the best light for colour is morning, while midday gives the brightest white. After rain, parts of the flat can be covered in a thin sheet of water that creates a mirror effect, but access may be limited. Combined with the painted hills of Purmamarca, the Salinas Grandes provide the strongest contrast of the northwest circuit, from vibrant colours to pure white in a single day.

Photography deserves a short guide of its own. The flat white surface and clear blue sky invite creative shots in which people appear tiny or giant, and a simple prop such as a toy, a bottle or a hat can turn a snapshot into a playful image. Shoot with the sun behind you or to the side to keep colours rich, bring a polarising filter if you have one and protect cameras from the fine salt dust.

Some tours also make a short stop at a hand-built salt hotel or souvenir stall, where you can buy salt blocks and small carvings. Remember that wind can be strong and cold, so carry a jacket even if the sun is hot, and finish the visit by taking a few quiet minutes to simply look at the horizon.