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.
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, 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.
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.
Exploring Salar de Uyuni: The World’s Largest Salt Flat
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.
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. spinmaya no deposit bonus code 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.
- Some tours include an overnight stay near the salt flats, while others return to Uyuni the same day.
- To add to the experience, we could see flamingos at Laguna Challviri.
- As you may have deduced by the name, the salt flats are near Uyuni in Bolivia, the starting point of most tours.
- The hot springs of Polques are the perfect place to take a break and relax.
- No special permission is required to enter the Uyuni salt flats.
- But keep in mind that even in this season, there is no guarantee you will see the reflective effect.
Polques Hot Springs
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.
Salar de Uyuni spreads over 10,582 km2, which is roughly 100 times the size of the Bonneville Salt Flats in the United States. The youngest prehistoric lake was Coipasa, which was radiocarbon dated to 11,500 to 13,400 years ago. Some 30,000 to 42,000 years ago, the area was part of a giant prehistoric lake, Lake Minchin.
What are the 10 Essential Travel Items?
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.
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).
The Cactus Island- Isabela Island.
The itinerary is similar to the standard 3-day tour, just in reverse, but this route is usually more expensive. Tupiza is another starting point for alternative Salar de Uyuni tours. A 2-day tour from Uyuni covers everything included in the 1-day tour. A 1-day tour from Uyuni is the cheapest option to explore Salar de Uyuni. Most tours to Salar de Uyuni start from the small town of Uyuni.
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.
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.
Plenty of travellers opt for the most basic Salar de Uyuni tour and have a fantastic time. There are options for one, two or three-day tours to Salar de Uyuni (some companies also have four-day options). Note that Chile is a much more expensive country to travel than Bolivia and as such tours booked and beginning in San Pedro tend to be more expensive than those in Bolivia. Most tours will visit the geysers at sunrise when the dawn light and rising steam combine to create an ethereal atmosphere.
Its unusual shape was formed over time by strong winds eroding the sandstone. They appear as small, pinkish spots in the photo below. On our 2025 tour, the sunset was included in the itinerary, and we had wine and snacks while watching the sunset. There are usually fewer tourists and no entry fee. The island is full of giant cacti, it’s awesome seeing them up close.
- The foundation of Salar de Uyuni goes back to a sequence of lakes that filled the Altiplano basin during the Pleistocene.In the past, huge inland lakes—like the prehistoric Lake Minchin—covered the region.
- You’ll need a warm sleeping bag (tour companies provide these, often at an additional charge), and don’t forget to pack warm clothing.
- 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.
- Vast reserves of untapped lithium lie beneath the salt flat, and in the early 21st century the Bolivian government discussed options and feasibility for its extraction and production.
- On 2025 tour, it was very windy, and Laguna Verde had a bright green color.
It is possible to visit the salt flats independently and while I was there I saw people camping with bikes! In the dry season there is no water layer, instead you can observe the hexagonal salt tiles that form on the surface. If you’re only interested in seeing the salt flat itself and snapping some awesome perspective photos, then the one-day option may be for you.
Make sure you know what the weather will be like before you book a tour and therefore what the landscape will look like. Also make sure you know exactly what the tour you are booking includes in terms of duration, accommodation options, guide and itinerary. 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. You’ll need a warm sleeping bag (tour companies provide these, often at an additional charge), and don’t forget to pack warm clothing. Daytime can often feel pleasantly warm in the sun, but after it sets temperatures can easily plummet to around -10°C. If you’re booking a budget tour, expect there to be an additional cost.
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.
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.
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