Salar de Uyuni: Formation, Geology & The Worlds Largest Salt Mirror

We chose a Spanish-speaking tour, and our basic Spanish was more than enough. It’s worth mentioning that you will spend most of your time in the car. So, below are a few points to know before choosing a tour. I recommend booking in person, as it’s usually cheaper.

Tips for Visiting Salar de Uyuni 🤓

Most locals make their living from salt production. Drinks were provided with meals, usually water and Coke, and dinners often came with red wine. When we did a tour in 2025, we paid extra for private rooms. When I did a tour eight years ago, the accommodation was basic. The tour takes you through elevations ranging from about 3,600 m to 4,800 m.
Collectively, these features make the Salar de Uyuni approximately five times more effective for satellite calibration than the surface of the open ocean. Salar de Uyuni is a popular tourist destination, and consequently a number of hotels have been built in the area. Because of its location, large area, and flatness, the Salar is a major car transport route across the Bolivian Altiplano, except when seasonally covered with water. However, except for January, even in the rainy season the number of rainy days is fewer than 5 per month. It is covered with a solid salt crust varying in thickness between tens of centimeters and a few meters. Lacustrine mud that is interbedded with salt and saturated with brine underlies the surface of Salar de Uyuni.

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Following rain, a thin layer of dead calm water transforms the flat into the world's largest mirror, 129 km (80 miles) across. The crust serves as a source of salt and covers a pool of brine, which is exceptionally rich in lithium. It is now covered by an 8 meter thick layer of spinmaya no deposit bonus code salt, which is extremely flat. Bangbros.com has a perfect mix of hot pornstar girls and amateur women for your enjoyment.
On our first tour in 2017, although it wasn’t windy at all, the lake had a greenish tint. In the morning, when most tours come to Laguna, you won’t see the emerald green color. Laguna Colorada, or the Red Lagoon, is a shallow salt lake home to thousands of flamingos. I don’t think this stop was included in tours eight years ago. Another salt flat close to the Chilean border, Salar de Chiguana is a little sister of Salar de Uyuni.
Today they create an eerie environment and stand as a testament to the corrosive power of salt! The first stop on most tours is the Train Graveyard (El Cementerio de Trenes) on the dusty outskirts of Uyuni. The deserted plain is the perfect canvas for taking perspective photographs and when covered in a layer of water it becomes the world’s largest mirror, which makes for stunning reflective images. Sense of distance and perspective become skewed as the salty surface goes on mile after endless mile. As the water evaporated the salt crystalised and formed a crust, which is up to 10 m thick in some places. There are tours that run directly from the Chilean town of San Pedro de Atacama, which is close to the Bolivian border.

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Relax in the thermal waters of the Polques Hot Springs after exploring the salt flats. The Train Cemetery, also known as "Cementerio de Trenes," is a significant tourist attraction near Uyuni, Bolivia, and within the Salar de Uyuni salt flats. For the adventurous, cycling or hiking across the salt flats is possible, but requires preparation and experience in arid environments. During the rainy season, water can fill parts of the salt flat, creating a stunning mirror-like effect. The salt flats are at 3,656 m.a.s.l. Some people can suffer from altitude sickness at this elevation.
It is estimated to contain around 10 billion tonnes of salt! Salar de Uyuni sits at an altitude of 3,650 metres and covers a staggering 10,000 sq km. (There are no day buses for some reason.) Local buses can be booked on busbud.com.

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  • Be warned that the accommodation on the budget tours is likely to be very basic.
  • Yes, you can visit Salar de Uyuni independently without booking an organized tour.
  • These are shared tours with five or six people per jeep and often with a Spanish-speaking guide.
  • For private tours expect to pay significantly more.
  • In the morning, when most tours come to Laguna, you won’t see the emerald green color.

But in the wet season, a thin layer of water transforms the surface into the world’s largest mirror, reflecting the blue altiplano sky and the clouds. We visited these hot springs on our 2017 tour. There is some variation in which hot springs are included in Uyuni tours, depending on the agency. On our first tour, it wasn’t part of the itinerary, but our driver still offered to take us to watch the sunset before heading to the salt hotel. And the views of the salt flats from up there are absolutely incredible.
The night sky is bright with stars, constellations, and even Milky Way which is perfectly reflected on the mirror-like surface with minimal light pollution and high altitude (wet season). There are reputable travel firms such as Gokite Oman which may help to organize well-curated tours with local Bolivian firms. When Opera Exploring Salar de Uyuni and the natural wonders around it, it is one of the most photogenic places to visit.

  • Sunblock, lip balm with SPF, and sunglasses – the sun is very harsh at high altitudes.
  • If you want to have a chance to see the beautiful mirror effect, you should visit in the wet season, which is from December to March.
  • The majority of travellers begin their Salar de Uyuni tour from Uyuni itself.
  • However, except for January, even in the rainy season the number of rainy days is fewer than 5 per month.
  • In reality, its deep red color comes from red sediments and the pigments of algae and microorganisms living in the lake.
  • On our first tour in 2017, although it wasn’t windy at all, the lake had a greenish tint.
  • This is when photographers go a-swarming to get the surreal effect of the infinity horizon, one of the most recognisable photographs of travelling the world.

Laguna Verde (Green Lake) turns green when strong winds lift the sediments of arsenic, copper, lead, and other minerals from the bottom of the lake. To add to the experience, we could see flamingos at Laguna Challviri. On our 2025 tour, we practically had the place to ourselves and enjoyed it more, as there was only one other group besides us. Challviri Hot Springs are tucked away near Laguna Challviri and are much quieter and usually less visited. The water is about 29 degrees Celsius and contains minerals that relieve the symptoms of arthritis and rheumatism.

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It’s basically a natural self-leveling surface. Over time, as climate changed, these lakes expanded during wet periods and shrank dramatically during dry ones. For photographers, scientists, engineers, and travelers, Salar de Uyuni is a place where nature behaves almost unreal. What we see today as a white desert is the long-term memory of ancient lakes, evaporation cycles, mineral precipitation, and climate shifts. Today, she spends her time solo backpacking, navigating through life and unfamiliar streets.
The majority of travellers begin their Salar de Uyuni tour from Uyuni itself. Here are some of the key differences between the plethora of tours on offer. A multi-day Salar de Uyuni tour is essentially a tour of the reserve. In these hotels everything, from the walls and floors to the beds and tables, is constructed from salt!

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