Laguna Hedionda: Bolivia’s Pink Flamingo Salt Lake

Laguna Hedionda is a 3-square-kilometer salt lake at 4,121 meters in Bolivia’s Potosí Department, about 220 kilometers southwest of Uyuni. Its sulfur-rich, alkaline water smells like rotten eggs — hence the Spanish name “stinking lagoon” — yet the shallows teem with plankton that draw hundreds of Andean, Chilean, and James’s flamingos within 30 meters of the shore. The lake sits inside the Eduardo Avaroa Andean Fauna National Reserve, and nearly every 3-day Uyuni-to-San Pedro de Atacama tour stops here for a long lunch. That stop is often the trip’s most photogenic hour: white borax crust, cobalt water, and a wall of 5,800-meter volcanoes.

Where Is Laguna Hedionda and How Do You Get There?

Laguna Hedionda lies in the Nor Lípez Province of Potosí, roughly 220 kilometers southwest of Uyuni and 40 kilometers north of the Chilean border. The drive from Uyuni takes about 3 hours by 4x4 — the last two hours are washboard gravel and sand, with no fuel, food, or cell signal. Independent drivers should download offline maps before leaving; Google Maps has routed travelers onto dead-end goat tracks here, and recovery can eat half a day.

From Uyuni by Tour

Most visitors arrive on a 2- or 3-day 4x4 circuit that also covers Laguna Cañapa, Laguna Colorada, and the Sol de Mañana geysers. A standard 3-day group tour costs about 1,400 BOB per person, including transport, driver-guide, and basic lodging but not the 150 BOB Eduardo Avaroa reserve entrance fee. Pay that fee in cash — the ranger station at the reserve entrance does not accept cards, and ATMs are nonexistent south of Uyuni.

From San Pedro de Atacama

Travelers coming from Chile join the same circuit in reverse. The lagoon is roughly a 2-hour drive from the Hito Cajón border crossing, making it a common first or last stop on a 3-day crossing. Buses between Uyuni and San Pedro de Atacama also connect the two towns, but they do not stop at the lagoon — you still need a tour vehicle for the final leg.

Self-Driving

Driving yourself is possible with a high-clearance 4x4, but navigation is the hard part, not the road. There are no signs for much of the route, and the “roads” are often braided tire tracks across open altiplano. Carry at least 20 liters of extra fuel, a satellite communicator if you have one, and cash for the reserve fee. The drive from Uyuni is 274 kilometers one way and takes 6 to 8 hours at altitude — longer than most itineraries allow.

What to See and Do at Laguna Hedionda

Flamingos Up Close

Laguna Hedionda is one of the few altiplano lakes where flamingos regularly feed close to the bank. On a calm morning, I counted more than 200 birds inside 50 meters — a mix of pale Andean flamingos, darker Chilean flamingos, and the rare James’s flamingo, which breeds almost exclusively in this corner of the Andes. They filter brine shrimp from the shallows, and the lake’s average depth of just 0.3 meters keeps them visible rather than hidden in deeper water.

Photography and Reflections

The lake is at its most mirror-like before 9 a.m., when wind is minimal. After noon, gusts of 40–60 km/h are common and the surface breaks into chop. A telephoto lens is useful, but the birds are tame enough that a 70–200mm range often suffices. Keep your shadow off the water and stay behind the low stone markers — the crust looks solid but hides 10 centimeters of soft mud in places.

The Shoreline and Bofedales

Around the lake edge, white borax crystals ring the water, and patches of bofedal wetland — cushion plants and sphagnum moss — spread where freshwater seeps in. The moss mat is deceptive: step on the raised hummocks, not the bare moss, or you will sink ankle-deep into freezing water. Llamas and alpacas graze the surrounding grassland, and the cone of Ollagüe volcano dominates the northern horizon.

When to Visit and What to Expect

The dry season from April to November brings clear skies, stable weather, and the best road access. Daytime temperatures hover around 10–15°C, but nights drop below freezing year-round — pack a down jacket even in July. The rainy season from December to March fills the lake and intensifies its color, but roads can turn to mud and some tours are canceled. Flamingos are present year-round, though numbers peak from November to March when rain expands their feeding habitat. My own visit in late August delivered 2°C at sunrise and flawless reflections — a reminder that “dry season” means dry, not warm.

Frequently Asked Questions

Is there an entrance fee for Laguna Hedionda?

No — the lake itself is free to visit. The 150 BOB Eduardo Avaroa National Reserve fee covers access to the broader reserve, including Laguna Colorada and the geysers, and must be paid in cash at the reserve entrance.

How long should I spend at Laguna Hedionda?

Most tours stop for 45 to 90 minutes, which is enough to watch flamingos, walk the shoreline, and eat lunch. Photographers who want the mirror-calm morning water should ask their driver to arrive before 9 a.m., even if that means an earlier start from the previous night’s lodge.

Can I see flamingos without a tour?

You can drive yourself, but there is no public transport to the lake and no facilities at the shore. The nearest fuel and lodging are in Uyuni, 220 kilometers away, so a self-guided day trip is impractical. Almost all visitors arrive as part of a 2- or 3-day 4x4 circuit.