Bolivia Salt Flats Salar de Uyuni A Complete Guide

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. 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.

Lunch at Salt Hotel

When you are Exploring Salar de Uyuni on a multi-day tour, chances are that you will be visiting this nearby reserve. When these ancient bodies of water evaporated due to time they left behind a thick crust of salt and other minerals and this is what we now call Salar de Uyuni. This spectacular salt flat that covers an area of 10,000 square kilometers is not only the largest in the world, but also one of the most astounding natural marvels in the earth. No special permission is required to enter the Uyuni salt flats. Towel and toiletries – these are not provided in standard tour salt hotels and refuges. This has direct consequences for lithium extraction, tourism pressure, and local ecosystems. The Salar’s visual magic is not random—it’s atmospheric physics. So the famous mirror effect is not just pretty—it’s physics, geology, and climate working together. It’s also possible to take a tour starting in Tupiza – a great option for those coming from Argentina. It’s also possible to take a tour from La Paz with transport to Uyuni included as part of the package. It’s possible to book ahead or choose a tour company on arrival. As you’d probably expect with one of the most popular attractions in South America, there are endless choices when it comes to booking a tour. “One of my favourite things about the Salar De Uyuni tour was simply driving from location to location.

So there is no guarantee the lake will be green when you come there.
December offers the most sunshine, with an average of 7 hours of sunlight per day.
There are tours that run directly from the Chilean town of San Pedro de Atacama, which is close to the Bolivian border.
One-day tours generally visit the Train Graveyard, Colchani, salt flats and Incahausi Island.
It is an experience because, when one reaches the summit they can observe the entire landscape and it is particularly breathtaking during sunset or sunrise.

Salar de Uyuni is the largest salt flat in the world, with an area of approximately 10,582 square kilometres (4,086 mi2). Sustainability has gained a critical concern as an increasing number of tourists head to Salar de Uyuni. When you are travelling to other neighbouring countries such as Chile or Peru, over land routes via San Pedro de Atacama and Puno are equally beautiful scenic routes as you go. The vast majority of the visitors arrive at Salar de Uyuni through the Bolivian capital, La Paz. According to many travelers it is one of the most intense stargazing moments of their existence. One-day tours generally visit the Train Graveyard, Colchani, salt flats and Incahausi Island. If taking a multi-day tour of the salt flats, it’s likely you’ll spend the night at one of the area’s unique salt hotels. However, despite a small size, Uyuni has comfortable hotels, restaurants, and travel firms which arrange multi-day tours through the salt desert. 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.

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Three- and four-day tours to the salt flats operate from here, and booking a guided tour is strongly recommended, as crossing the border independently can be challenging.
Across more than 10,000 square kilometers, the elevation difference is barely around one meter.This is almost impossible in natural landscapes.
There’s a short walk to the top of the island, and the entry fee is 30 Bs (not included in the tour price).
To get the best and the most current information, it is always advisable that one consults the official Bolivian embassies or reliable travel agents.
Even if you decide to book a tour on arrival in Uyuni, try to do a little research on the company you choose and check reviews.
On our 2025 tour, we practically had the place to ourselves and enjoyed it more, as there was only one other group besides us.
It’s also possible to take a tour from La Paz with transport to Uyuni included as part of the package.

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. Here’s all you need to know about this unique experience. The fields of salt, extending as far as the eye can see and backed by distant mountains, create one of the most dramatic and unique vistas on Earth. Salar de Uyuni is the remains of an enormous prehistoric lake. In February 2024, the Copernicus Sentinel-3B mission conducted calibration activities over the salar for its Synthetic Aperture Radar Altimeter (SRAL). As part of its validation strategy, CryoSat-2 has relied on the salar, where its Interferometric synthetic-aperture radars (InSAR) capabilities were reinstated to enhance the precision of altimetric observations. The mission focused on calibrating radar-based measurements of surface topography.

Main Timer setup

Now one of the key stops on Salar de Uyuni tours, it’s become something of a tourist spinmaya no deposit bonus code 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.

Day Salar de Uyuni – what to expect?

During the rainy season (usually December–March), a thin layer of water spreads over the salt surface—sometimes just a few millimeters, sometimes a bit more. As you may have deduced by the name, the salt flats are near Uyuni in Bolivia, the starting point of most tours. The plateau includes fresh and saltwater lakes as well as salt flats and is endorheic. It leaves a permanent imprint on any traveler whether it is the glittering salt plains in the dry months or the fantastical reflections in the rainy seasons, this is a natural wonder which is unforgettable. Your trip starts with the small town of Uyuni that is the central point of the salt flat tours. Catch a local bus to Colchani (this is a stop on tours to visit a salt museum). Solar de Manaña geysers are located at an altitude of more than 15,912 ft/ 4,850m. Make sure to charge your devices during this time. Note that to enter Reserva Nacional de Fauna Andina Eduardo Avaroa, you need to pay an entrance fee of Bs 150 (not included in the tour price). In reality, its deep red color comes from red sediments and the pigments of algae and microorganisms living in the lake. According to the local folklore, the water in Laguna Colorada is the blood of the Gods. It sits at an altitude of 14,000 ft/ 4,270 m in Eduardo Avaroa Andean Fauna National Reserve, close to the Chilean border. On both tours our drivers found spots with no one else around and brought dinosaur toys and wine bottles to use in the shots. The Dakar monument is made of salt, and the flags were left by travelers during their visits. It’s located near the Argentine border and a bit farther from the Uyuni salt flats. In Uyuni, there are plenty of travel agencies offering Salar de Uyuni tours. Unfortunately, standard 2-day tours don’t include these highlights. If you are coming from Argentina it is possible to book tours that begin in Tupiza. Most people time their arrival for the morning of the start of their tour. There is nothing really of interest in Uyuni itself so it’s not worth spending much time here. Be aware that December and January are the wettest months and sometimes excessive rain can lead to tour cancellations. The clear night skies offer great star-gazing opportunities and you’ll also be able to visit some places that aren’t accessible during the wet season.

What is Salar de Uyuni

When it dried, it left behind two modern lakes, Poopó and Uru Uru, and two major salt deserts, Salar de Coipasa and the larger Salar de Uyuni. Uyuni originates from the Aymara language and means a pen (enclosure); Uyuni is also the name of a town that serves as a gateway for tourists visiting the Salar. The large area, clear skies, and exceptional flatness of the surface make the Salar ideal for calibrating the altimeters of Earth observation satellites. The Salar was formed as a result of transformations of seven Late Pleistocene lakes whose progressive desiccation led to the accumulation of extensive evaporitic salt deposits. These months are also less cold than the dry season. Some would argue the vistas during the wet season are even more mesmerising than in the dry season. The rainy season (December to April) brings its own beauty. When the rain accumulates on the layer of salt, Salar de Uyuni is transformed into a tremendous mirror and reflects the clouds, sunrises and sunsets flawlessly. The skies are very clear and can be viewed without clouds to have a perfect view of the stars and also photography. It presents the most opportune moment to the travelers that wish to go exploring in 4×4 vehicles and see the islands that are found in the flats. A land of the opposites – it is where the geological formations of the past are in contact with the futuristic sceneries that have been a source of inspiration to filmmakers, photographers and even adventurers. Salar de Uyuni is not just a vast expanse of salt, but it is located in southwest Bolivia, almost on the crest of the Andes, some 3,656 meters above sea level. 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. Join our community to get discounts, travel inspiration and trip ideas – just in time for summer! For travelers on a short trip that want to make the most of their time exploring. Experience guides offer travelers innovative ways to discover iconic destinations, featuring unique adventures and trip-building tools for personalized journeys. The crust is extremely hard—vehicles can drive over it in dry season—yet it has the ability to reshape itself when water interaction begins again. Each polygon is like the surface expression of a slowly growing salt plate. Because of this, NASA and ESA regularly use Salar de Uyuni to calibrate satellite altimeters—something only this kind of surface can offer.