Salar de Uyuni

The Salar de Uyuni is the largest salt flat on earth: a blinding-white expanse stretching over 10,000 square kilometres across southwest Bolivia at 3,660 metres above sea level. Whether you know it as the Uyuni salt flats, the Uyuni desert, or simply “that mirror in Bolivia,” it is the country’s most iconic sight: a cracked white honeycomb in the dry season, a perfect sky-reflecting mirror in the wet.

On this page

• Quick answer
• What is the Salar de Uyuni
• Best time to visit
• Tour options
• Things to do and what you will see
• How to get to Uyuni
• Uyuni town
• Altitude and what to pack
• Where to stay
• The salt flat at night
• Other things to do nearby
• Costs and practical tips
• FAQs

Quick answer

Visit the Uyuni Bolivia salt flats in the dry season (May–November) to drive across the white salt crust, or the wet season (December–April) for the mirror reflection. Most people fly from La Paz and take a one-day tour of the flat or a three-day tour across the southern Altiplano to coloured lagoons, flamingos and hot springs. The altitude at Uyuni is 3,660 metres, so acclimatise first and pack for cold nights.

What is the Salar de Uyuni

The salar is the dried bed of a prehistoric lake, left behind as a thick crust of salt over a pool of brine that holds a large share of the world’s lithium. In the dry months the surface hardens into the famous hexagonal tiles; in the rains, a shallow film of water sits on top and reflects the sky. It is remote, high, and genuinely vast; on a clear day you lose all sense of scale.

Best time to visit

Dry season (May–November). The salt is solid and vehicles drive far out onto it. This is the time for the classic perspective photos and for reaching Incahuasi island in the middle of the flat.

Wet season (December–April). Rain leaves a thin mirror of water, usually strongest around January and February, that doubles the sky. The trade-off is that heavy water can limit how far vehicles go and can hide the hexagon pattern.

There is no single best month, only a best month for you. If the mirror is the reason you are going, aim for the wet season and accept that some days will be too wet or too dry for a clean reflection. If you want to walk far out onto the crust, reach Incahuasi island, and run the full southern circuit without water blocking the route, the dry season is the safer bet. The shoulder months of April and November can, with luck, give you a little of both.

Tour options

Almost everyone visits on a guided tour from Uyuni town, in a 4×4 with a driver:

• One day: the salt flat, Incahuasi (cactus) island, salt-processing at Colchani, and the train cemetery; enough for a first taste.
• Two to three days: the flat plus the southern high-Altiplano circuit of coloured lagoons, flamingos, hot springs and geysers, often finishing at the Chilean border for San Pedro de Atacama.

Nights are spent in basic salt hotels or refuges. Compare operators for safety and vehicle condition rather than price alone.

Reputable tour operators

Dozens of agencies operate out of Uyuni town, but a few have built strong reputations over years of running the route:

• Red Planet Expedition: one of the more established operators, running one-day and multi-day tours with newer vehicles and English-speaking guides.
• Andes Salt Expeditions: a mid-range operator popular with backpackers and small groups, with consistent reviews for the three-day southern circuit.
• Salty Desert Aventours: another well-reviewed agency that runs both standard tours and private departures.

Book directly in Uyuni rather than through a middleman in La Paz, and inspect the vehicle before departure. On multi-day tours, ask specifically about sleeping-bag quality, meal arrangements, and whether the driver doubles as a guide or if a separate guide is included.

Things to do and what you will see

• Incahuasi island: a rocky outcrop covered in giant cacti, in the middle of the white. The short climb to the summit gives the best vantage point over the salt.
• The train cemetery: rusting 19th-century steam locomotives on the edge of Uyuni town, left over from the mining boom. Free to visit, best in early morning light.
• Laguna Colorada (the red lagoon): a shallow, mineral-stained lake that turns deep red from algae, dotted with James’s and Andean flamingos. One of the highlights of the three-day circuit.
• Laguna Verde: a vivid green lake beneath the Licancabur volcano near the Chilean border, coloured by copper and arsenic minerals.
• Sol de Mañana: steaming geysers and bubbling mud pools at over 4,800 metres on the Altiplano.
• Hot springs: natural thermal pools along the southern circuit where you can warm up at dawn before the day’s driving. The Polques hot springs, at the edge of Laguna Chalviri, are the most visited.
• Forced-perspective photography: the flat white expanse and lack of any reference points make the dry-season salar a natural studio for trick shots. Bring small props; toy dinosaurs and Pringles cans are the classics.

The flat itself is the main event, but the stops around it give the trip its variety. Incahuasi, sometimes called Isla del Pescado, rises out of the white like a desert island covered in ancient cacti, and the short climb to the top is a rare high vantage point over the salt. On the way in from town, the train cemetery is a strange, photogenic graveyard of steam locomotives left over from Bolivia’s mining boom.

It is also a playground for photography. In the dry season the blank white background and total lack of scale let you set up the famous forced-perspective shots, so bring a small prop or two. In the wet season the reflections do the work, and the hour around sunrise and sunset gives the softest light and the strongest mirror.

How to get to Uyuni

The quickest route is a short flight from La Paz to Uyuni (under an hour, operated by Boliviana de Aviación). Overnight buses run from La Paz (10–12 hours), Sucre (7–8 hours) and Potosí (5–6 hours), and a scenic train connects Oruro to Uyuni.

From Santa Cruz

Santa Cruz to Uyuni is a long haul; either a domestic flight to Sucre or La Paz and then onward, or a gruelling 15+ hour bus through Potosí. Most travellers break the journey with a night in Sucre or Potosí rather than doing it in one go.

From Tupiza

The old mining town of Tupiza, south of Uyuni, is an alternative starting point. Some operators run the three-day tour in reverse, starting from Tupiza through red-rock canyons and the southern lagoons before arriving at the salt flat. It is a scenic route and avoids the crowd that departs from Uyuni town each morning.

Many travellers pair the salt flats with the wider Bolivia route through La Paz, Sucre and Potosí.

Uyuni town

Uyuni is a small, wind-scoured town at 3,670 metres on the edge of the Altiplano, and it exists almost entirely as a base for visiting the salt flats. There is no reason to spend more than a night or two here, but there is enough to fill an evening before or after your tour.

Avenida Ferroviaria is the main drag, lined with tour agencies, restaurants, and souvenir shops selling salt carvings and llama-wool goods. The town’s one real landmark is the clock tower on the main plaza. Restaurants serve simple Bolivian food, soup, rice, chicken, for BOB 20–40 ($3–6 USD). The market near the bus terminal has the cheapest meals.

Don’t expect much nightlife, reliable Wi-Fi, or ATMs that always work. Bring enough cash in Bolivianos from La Paz or Sucre to cover your stay. The altitude is the same as the salt flat itself, so if you are arriving from low elevation, your first night in Uyuni will feel it: headache, breathlessness, trouble sleeping. Coca tea helps.

Where to stay

In Uyuni town

Most travellers base themselves in Uyuni, which has a spread of simple hotels and hostels. Budget rooms start around BOB 80–120 ($12–17 USD) per night; mid-range hotels with heating and hot water run BOB 200–400 ($29–58 USD). Book one with breakfast included if your tour leaves early; most do.

Salt hotels

For something more memorable, several salt hotels sit on or near the edge of the flat, built largely from blocks of salt: walls, floors, beds, chairs, all carved from the salar itself. The Palacio de Sal and Luna Salada are the best known, offering heated rooms, hot showers, and views straight onto the white. Expect to pay $80–150 USD per night. They book up in high season (June–August), so reserve ahead.

On the three-day circuit

Nights on the southern Altiplano loop are spent in basic refuges and salt lodges with shared bathrooms, limited electricity, and little or no heating. Temperatures drop well below freezing at night. Pack a warm sleeping layer, a head torch, and patience; this is not hotel-level comfort, but the scenery more than compensates.

The salt flat at night

The Salar de Uyuni at night is one of the best places on earth to see stars. The flat sits at 3,660 metres, far from any city lights, and the air is dry and thin. On a clear night, especially during the dry season, the Milky Way stretches overhead in a wide, bright band, and the reflection on any remaining water doubles it.

Some tour operators offer sunset-to-stars excursions that drive out onto the flat in the late afternoon and stay for astrophotography after dark. If your standard day tour does not include this, ask your operator about adding a night visit. Bring a tripod, a wide-angle lens, and warm layers; the temperature on the flat after dark drops fast, often to −10°C or colder in the dry months.

Other things to do nearby

The salt flat is often the start of a longer southern loop rather than a stop on its own. The three-day circuit continues through the Eduardo Avaroa reserve to the red Laguna Colorada, the green Laguna Verde, bubbling geysers and flamingo-filled lakes, and can end at the Chilean border for San Pedro de Atacama. Heading the other way, the old mining town of Tupiza to the south makes a scenic alternative start or finish, with red-rock canyons and horse-riding.

Altitude and what to pack

At 3,660 metres, higher still on the southern circuit, altitude is the main thing to plan for. Acclimatise for a day or two beforehand, drink plenty of water, and take the first day slowly. Days are bright and cold, nights below freezing, so bring strong sun protection, sunglasses, warm layers, and a hat and gloves for the lagoon circuit.

Costs and practical tips

Bolivia is one of the cheapest countries in South America, and Uyuni tours reflect that:

• One-day shared tour: BOB 150–250 ($22–36 USD) per person, including lunch and transport
• Three-day shared tour: BOB 800–1,200 ($115–175 USD) per person, including meals, accommodation, and park fees
• Private tour (one day): BOB 1,500–2,500 ($215–360 USD) for the vehicle
• Eduardo Avaroa park fee: BOB 150 ($22 USD), sometimes included in tour price
• Salt hotel (per night): $80–150 USD
• Budget hotel in Uyuni: BOB 80–120 ($12–17 USD)
• Meal in Uyuni: BOB 20–40 ($3–6 USD)

Book with a reputable operator rather than the cheapest one. Check whether meals, park fees and the Chilean border transfer are included. Carry cash in Bolivianos; card payment is limited in Uyuni and non-existent on the circuit. ATMs in Uyuni are unreliable, so withdraw in La Paz, Sucre or Potosí.

Frequently asked questions

When is the best time to visit Salar de Uyuni?

It depends what you want. The dry season (roughly May to November) gives you the classic white, cracked salt crust you can drive across and use for perspective photos. The wet season (December to April) brings a thin layer of water that turns the flat into a giant mirror.

When can you see the mirror effect at Uyuni?

The mirror reflections need a thin sheet of water on the salt, which usually forms during the rainy months from around December to March, and is often strongest in January and February. It varies year to year with the rains, and heavy water can also close parts of the flat to vehicles.

How many days do you need at the salt flats?

A one-day tour covers the salt flat itself, Incahuasi (cactus) island, and the train cemetery. The classic three-day tour continues south across the high Altiplano to coloured lagoons, flamingos, and geysers, and can end in San Pedro de Atacama in Chile.

How do you get to Uyuni?

The fastest way is to fly from La Paz to Uyuni, which takes under an hour. There are also overnight buses from La Paz, Sucre and Potosi, and a train service from Oruro. Most travellers fly in and start a tour from Uyuni town.

Is Salar de Uyuni at high altitude?

Yes. The salt flat sits at about 3,660 metres, and the three-day southern circuit climbs even higher, past 4,800 metres. Spend a day or two acclimatising in La Paz, Sucre or Potosi first, and expect cold nights.

Can you visit Salar de Uyuni all year round?

Yes, it is open year-round; only the experience changes with the season. Dry months give the drivable white crust, wet months give the mirror, and the transition months can offer a bit of both.