If travelling to Uyuni by bus you will arrive early in the morning (around  6 or 7 am) and most tours begin at around 10 am, giving you time to scout around for a tour you like. During this time the salt is covered by a layer of water that provides a dramatic mirror effect and creates unique conditions for fabulous photos. At this time of year you will enjoy the quintessential views of the salt flats, with vast expanses of white landscape extending to the horizon.

High Altitude

Now one of the key stops on Salar de Uyuni tours, it’s become something of a tourist trap. The area was once covered by a huge saltwater lake, which dried up some 30,000–40,000 years ago. The focal point of any Salar de Uyuni tour is, of course, the world’s largest salt flat. Known locally as Salar de Uyuni, the salt flats are part of the Altiplano, a vast plateau that extends for 965 km from southern Peru to the southwestern corner of Bolivia. As the largest salt flat on Earth, the Salar de Uyuni is widely regarded as one of the most effective natural calibration sites for Earth-observing satellites. Multiple fatal incidents have occurred at the salt flat as a result of poorly maintained vehicles, untrained drivers, speeding, a disregard for the inhospitable conditions, and lack of regulation for tour companies.
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.

Day Salar de Uyuni – what to expect?

Be warned that the accommodation on the budget tours is likely to be very basic. These are shared tours with five or six people per jeep and often with a Spanish-speaking guide. If you have time, take a longer tour – you won’t regret it.” If you’d like to explore further afield and get out into the surrounding landscape then opt for a two- or three-day tour. Another popular option for travellers heading north from Chile is to take a tour from the border town of San Pedro de Atacama.
The island is a remnant of an ancient volcanic formation and was once part of a prehistoric lake. It’s a unique landscape featuring giant cacti, some reaching over 10 meters tall, thriving amidst the harsh, salty environment. The salt crusts and brine pools support a rich diversity of microbial communities, including halophilic archaea and bacteria that have adapted to the high salinity and other extreme conditions. The Salar de Uyuni is characterised by high salinity, low humidity, and a significant altitude, creating a challenging environment for most life forms. The savage beauty of this vast salt desert makes it one of South America’s most awe-inspiring spectacles.

Sunset at Salar de Uyuni

Warm clothes – the altitude is high, and it gets quite cold at night, and below zero in winter months (June to August). If you don’t like rain and prefer dry weather, spinmaya no deposit bonus code visit between May and November. But keep in mind that even in this season, there is no guarantee you will see the reflective effect. Unfortunately, our tour didn’t take us right to the lagoon; we could only see it from far away. On 2025 tour, it was very windy, and Laguna Verde had a bright green color. So there is no guarantee the lake will be green when you come there.

Top 10 Lesser-Known Geological Features Formed Entirely by Water

  • The crust serves as a source of salt and covers a pool of brine, which is exceptionally rich in lithium.
  • For much of the year, the salt flats stretch out in a seemingly endless expanse of white, covering about 10,000 square kilometers (4,000 square miles).
  • It is estimated to contain around 10 billion tonnes of salt!
  • Epic Guides provide inspiration and first-person stories for a lifetime of unforgettable travel experiences.
  • During the dry season, a thick crust of salt, covered with polygonal patterns, stretches to the horizon.
  • Some 30,000 to 42,000 years ago, the area was part of a giant prehistoric lake, Lake Minchin.

Salar de Uyuni is by far the jewel of South America to those travelers who want awe-inspiring beauty and mystery and to have an adventure that they will remember. On its shores are saltworks at Salinas de Garci Mendoza on the north, Llica on the northwest, and Calcha on the south. I only recommend services I’ve either personally used, thoroughly researched, or consider reliable based on reputation and reviews. This is the most popular itinerary and absolutely worth your time and money. Toys, bottles, etc, to take fun perspective photos. Drinking water and drinks are more expensive than in the town of Uyuni.
In Colchani, there are several hostels, a couple of salt museums, and a souvenir market where all tours stop by. It’s a good way to explore Uyuni salt flats as long as you don’t plan to cycle further to the altiplano. We saw a couple of people cycling on the Uyuni salt flats.
Of course, there are also many reputable tour operators in the area who will ensure your experience of this natural wonder is both memorable and safe. Epic Guides provide inspiration and first-person stories for a lifetime of unforgettable travel experiences. A dried lake becomes a salt desert.A salt desert becomes a mirror.And a mirror becomes a global symbol of surreal natural beauty. High altitude → thin air → less scatteringWhite salt → strong reflectionFlat surface → no curvature effects
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 salt, which is extremely flat. Bangbros.com has a perfect mix of hot pornstar girls and amateur women for your enjoyment.
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.

Due to lack of conventional construction materials, many of them are almost entirely (walls, roof, furniture) built with salt blocks cut from the Salar. Salar de Uyuni is estimated to contain 10 billion tonnes (9.8 billion long tons; 11 billion short tons) of salt, of which less than 25,000 t is extracted annually. Lithium is concentrated in the brine under the salt crust at a relatively high concentration of about 0.3%. The brine is a saturated solution of sodium chloride, lithium chloride, and magnesium chloride in water. During the wet season, Titicaca overflows and discharges into Poopó, which in turn, floods Salar De Coipasa and Salar de Uyuni.

  • I’ve done the 3-day Salar de Uyuni tour twice with different agencies, eight years apart, in 2017 and 2025.
  • Walking across the salt flats allows you to truly appreciate the scale of the landscape and feel the texture of the salt crust underfoot.
  • The mission focused on calibrating radar-based measurements of surface topography.
  • There is some variation in which hot springs are included in Uyuni tours, depending on the agency.
  • South America has stunning salt flats, but Salar de Uyuni is the world’s largest at about 4,674 sq mi (12,106 sq km).

It was once a place of ceremony in Inca times (hausi means house in Quechua). Colchani is a small salt-processing village 20 km south of Uyuni. Remnants of a former era, the disused trains lie abandoned and rusting in the salty winds. The great expanse of the white stuff, divided into hexagonal salt tiles, creates an otherworldly landscape.
The best time to see the mirror effect at Salar de Uyuni is during the wet season, which is from December to March. Take altitude seriously, and make sure you acclimatize properly before a tour to fully enjoy the beauty of Salar de Uyuni. 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 best time to visit Salar de Uyuni depends on what you want to see. During the dry season, a thick crust of salt, covered with polygonal patterns, stretches to the horizon.
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.
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.
However, if you are travelling from La Paz (which is at a similar altitude) or Cusco (just 250 m lower) then you will likely be fine as you should have acclimatised. For private tours expect to pay significantly more. These are shared tours with usually five or six people per jeep.