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Lençóis Maranhenses National Park

Brazil🇧🇷 | national parksLençóis Maranhenses National ParkRain-fed lagoons, white dunes, Atins crossing, Preguiças river | things to do and best time to go

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Backpacking in Lençóis Maranhenses
UNESCO World Heritage site
🏆 Top picknational park ranked #2
By Johan Kruseman 🇳🇱 | Updated October 19, 2026

Lençóis Maranhenses is not a desert: it gets heavy rain from roughly January to June, and that rain is what fills the lagoons between the dunes. The park sits on the northeast coast of Brazil, in the state of Maranhão. Dry sand all year would give you no swimming, so an experienced traveler times the visit for the months after the rains, when the water is deepest. Skip the midday 4x4 lagoon loops if you only want photos of crowds; they stack up at the same few lagoons. What earns the trip is the walking and the emptiness beyond them. I filled two liters at the last village tap before crossing, and the sand-and-water silence on the far side was worth every sip. Access is slow, there is almost no shade, and wildlife is sparse. Hikers and dune-lovers will adore it. Anyone wanting quick, comfortable sightseeing will not.

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✨ Why go?
Ranked #2 national park in BrazilReasons people choose to explore here

Lençóis Maranhenses National Park rewards backpackers who like to move under their own power. The signature route is the multi-day crossing on foot from Atins to Santo Amaro, passing through dunes and tiny fishing hamlets where you sleep in a hammock or a basic room and eat whatever the family caught that day. No tour is required, though a local guide helps because the dunes shift and there are no signed paths. Another draw is the water itself. Between roughly June and September the rain-fed lagoons are warm, clear and deep enough to swim in, with dunes rising up to about 40 meters around them. Compared with guided day packages from Barreirinhas, going independently costs less and puts you at the best spots when the 4x4 groups have left. Self-guided travelers do need to plan food, water and tides, but that planning is the adventure.

💡 HighlightsKey sights and experiences for travelers

  1. Lagoa Azul: The most famous lagoon, with blue-green water ringed by white dunes. It is easy to reach by 4x4 from Barreirinhas, so expect company, but it is the classic swim.
  2. Lagoa Bonita: Another easy-access lagoon with a sunset reputation. The dunes behind it are high and wide, good for a short climb.
  3. Atins: A quiet village between the dunes and the Preguiças River, a natural start for long walks and kitesurfing.
  4. Rio Preguiças: A river boat trip passes mangroves and small settlements on the way to the coast.
  5. Atins to Santo Amaro crossing: A multi-day walk over open dunes that gives solitude few other routes in Brazil offer.
  6. Queimada dos Britos: A small oasis settlement reached after a long dune walk, with simple lodging and a very local feel.
  7. Vassouras: Sandbank village on the river, known for
… read more 👉
  1. Lagoa Azul: The most famous lagoon, with blue-green water ringed by white dunes. It is easy to reach by 4x4 from Barreirinhas, so expect company, but it is the classic swim.
  2. Lagoa Bonita: Another easy-access lagoon with a sunset reputation. The dunes behind it are high and wide, good for a short climb.
  3. Atins: A quiet village between the dunes and the Preguiças River, a natural start for long walks and kitesurfing.
  4. Rio Preguiças: A river boat trip passes mangroves and small settlements on the way to the coast.
  5. Atins to Santo Amaro crossing: A multi-day walk over open dunes that gives solitude few other routes in Brazil offer.
  6. Queimada dos Britos: A small oasis settlement reached after a long dune walk, with simple lodging and a very local feel.
  7. Vassouras: Sandbank village on the river, known for its dunes and views over the Preguiças delta.
Lagoa Azul is the best pick for a first visit, because it combines easy access with the full dune-and-water picture.
Spotted a mistake or missing something? Contact us.

Things to do near Lençóis Maranhenses National Park

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🌤️ When to go?Weather, crowds, and seasonal trade-offs

  • Peak Lagoon Season (June to September): The dunes are at their fullest, with rainwater lagoons turquoise and swimmable by July. Temperatures run about 24 to 32°C (75 to 90°F). Days hold roughly 12 hours of light. Lodging and 4x4 tours cost the most and book out in July.
  • Fading Lagoons (October to December): Water drops fast and many pools vanish by November. Heat climbs to 26 to 34°C (79 to 93°F). Crowds thin and prices ease, though the dunes turn mostly sand.
  • Rainy Season (January to May): Heavy downpours fill the lagoons from February on, with 25 to 31°C (77 to 88°F) and muggy air. Roads and boat trips on the Preguiças River can be disrupted. Lagoons are still shallow in early months, and rates are lowest.
  • Sweet Spot (late June to August): Full lagoons, steady sun and lighter winds than later
… read more 👉
  • Peak Lagoon Season (June to September): The dunes are at their fullest, with rainwater lagoons turquoise and swimmable by July. Temperatures run about 24 to 32°C (75 to 90°F). Days hold roughly 12 hours of light. Lodging and 4x4 tours cost the most and book out in July.
  • Fading Lagoons (October to December): Water drops fast and many pools vanish by November. Heat climbs to 26 to 34°C (79 to 93°F). Crowds thin and prices ease, though the dunes turn mostly sand.
  • Rainy Season (January to May): Heavy downpours fill the lagoons from February on, with 25 to 31°C (77 to 88°F) and muggy air. Roads and boat trips on the Preguiças River can be disrupted. Lagoons are still shallow in early months, and rates are lowest.
  • Sweet Spot (late June to August): Full lagoons, steady sun and lighter winds than later in the year.
Arrive on a weekday in July and book tours a few weeks ahead, since the best lagoon sections fill first.


source: climatestotravel.comJANJanuary: good for travelingFEBFebruary: good for travelingMARMarch: good for travelingAPRApril: good for travelingMAYMay: good for travelingJUNJune: highly recommended for travelingJULJuly: excellent for travelingAUGAugust: excellent for travelingSEPSeptember: excellent for travelingOCTOctober: highly recommended for travelingNOVNovember: fair for travelingDECDecember: fair for traveling
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🛏️ Where to stay?Choosing the right base

Barreirinhas is the practical base, with the widest range of hostels, pousadas and tour agencies, and no lodging worth the name inside the park itself. Expect hostel dorms and simple pousadas along the main street and the riverfront Rua do Porto, where you can book Lagoa Azul and Lagoa Bonita 4x4 trips the same day. Most backpackers stay two or three nights here, then ride a 4x4 or boat out for the next step.
For a quieter stretch, the tiny village of Atins sits on the park’s coastal edge, reached by 4x4 through the dunes or by boat from Barreirinhas. It has a handful of simple pousadas, kitesurf … read more 👉
Barreirinhas is the practical base, with the widest range of hostels, pousadas and tour agencies, and no lodging worth the name inside the park itself. Expect hostel dorms and simple pousadas along the main street and the riverfront Rua do Porto, where you can book Lagoa Azul and Lagoa Bonita 4x4 trips the same day. Most backpackers stay two or three nights here, then ride a 4x4 or boat out for the next step.
For a quieter stretch, the tiny village of Atins sits on the park’s coastal edge, reached by 4x4 through the dunes or by boat from Barreirinhas. It has a handful of simple pousadas, kitesurf camps and beach bars, with sand streets and little nightlife. Stay here if you want to walk to the Canto do Atins dunes and reach Lagoa Azul trips without the Barreirinhas crowds. Power cuts and weak internet happen.
Camping and hammock stays exist in remote spots like Queimada dos Britos, where families rent hammocks in basic homes. These are authentic but very simple. Book ahead in July and August, when Barreirinhas fills up. São Luís, about 4 to 5 hours away by road, is the arrival city and has more hostels for a night before or after.
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👛 Costs (as of 19 October 2026)Money, prices, and spending tips

A backpacker should budget about US$39 to 83 a day at Lençóis Maranhenses National Park, with most of it going to tours and lodging in Barreirinhas. The park charges no entrance fee, so costs come from guided transport.
CategoryBudget RangeLocal Reality
Entrance feeUS$0No official gate fee for the park, though some guided trips include small local charges.
Accommodation (high season)US$12 to 30Hostel dorms and basic pousadas in Barreirinhas. Atins and Queimada dos Britos cost a bit more or are simpler.
4x4 and boat toursUS$12 to 25Half-day shared trips to Lagoa Azul and Lagoa Bonita cost around US$12 to 20 per person. River boats to Atins run similar prices.
Local transportUS$3 to 8Short rides in Barreirinhas by mototaxi or tuk-tuk. Shared vans from São Luís cost more per trip.
Food and suppliesUS$12
… read more 👉
A backpacker should budget about US$39 to 83 a day at Lençóis Maranhenses National Park, with most of it going to tours and lodging in Barreirinhas. The park charges no entrance fee, so costs come from guided transport.
CategoryBudget RangeLocal Reality
Entrance feeUS$0No official gate fee for the park, though some guided trips include small local charges.
Accommodation (high season)US$12 to 30Hostel dorms and basic pousadas in Barreirinhas. Atins and Queimada dos Britos cost a bit more or are simpler.
4x4 and boat toursUS$12 to 25Half-day shared trips to Lagoa Azul and Lagoa Bonita cost around US$12 to 20 per person. River boats to Atins run similar prices.
Local transportUS$3 to 8Short rides in Barreirinhas by mototaxi or tuk-tuk. Shared vans from São Luís cost more per trip.
Food and suppliesUS$12 to 20Filling plates of fish, rice and beans cost US$5 to 8, with water and snacks extra.
Total Daily BudgetUS$39 to 83Costs rise in July and August and fall in the rainy season.
⚠️ Prices can change and everyone travels differently, so take this as a rough guide. Hope it helps you plan your adventure!

🥾 TrailsHiking Lençóis Maranhenses national park: highlights and difficulty

Lençóis Maranhenses National Park has few formal, signed trails, so most walking follows routes between villages, guided by locals who know where the dunes and lagoons are.
  • Atins to Santo Amaro crossing: roughly 2 to 3 days, long and sandy, with no shade and shifting dunes. Hard. You pass lagoons and hamlets such as Queimada dos Britos.
  • Lagoa Azul and Lagoa Bonita circuit: usually half a day by 4x4 with a driver, with short dune climbs. Easy to moderate, good for a first taste.
  • Lagoon day walks from Atins: 3 to 6 hours across dunes to the nearest lagoons, flat but hot, moderate.
The terrain is soft … read more 👉
Lençóis Maranhenses National Park has few formal, signed trails, so most walking follows routes between villages, guided by locals who know where the dunes and lagoons are.
  • Atins to Santo Amaro crossing: roughly 2 to 3 days, long and sandy, with no shade and shifting dunes. Hard. You pass lagoons and hamlets such as Queimada dos Britos.
  • Lagoa Azul and Lagoa Bonita circuit: usually half a day by 4x4 with a driver, with short dune climbs. Easy to moderate, good for a first taste.
  • Lagoon day walks from Atins: 3 to 6 hours across dunes to the nearest lagoons, flat but hot, moderate.
The terrain is soft sand, so walking is slower than the distance suggests. Mornings and late afternoons are far more comfortable than midday, and good sun protection matters. Wildlife is modest: you may see birds, crabs in the mangroves and small fish in the lagoons.
Getting there usually means reaching Barreirinhas, the main gateway, by road from São Luís. From there you continue by 4x4 or boat for access. Public transport inside the park is limited and mostly arranged by shared 4x4s. Visitor numbers are highest at the easy lagoons in the June to September season, while longer routes stay quiet. Entry is generally free, though guides and transfers cost extra.
⚠️ Hiking info can sometimes be outdated or inaccurate. Before you hit the trail, check the latest conditions with locals. If you do spot anything that's off, I'd love to hear from you, so I can update it for fellow travelers.

🛡️ SafetyTraveler Safety Guide

Lençóis Maranhenses is straightforward and well managed, and the main hazards are sun, heat and soft sand rather than crime or wildlife. Shade is nonexistent on the dunes. Carry at least 2 to 3 liters of water, wear a hat, and use strong sunscreen. Walking in deep sand is tiring, so go slowly and rest often.
Navigation is the real issue on longer treks. Dunes shift, tracks vanish and landmarks look identical, so use a licensed guide for multi-day routes such as the Atins to Santo Amaro crossing. Many lagoon visits go by 4x4 with a driver, which keeps things simple.
Lagoons are shallow and calm, but rain season currents on the Preguiças River and boat landings deserve respect. Keep valuables out of sight in town. Wildlife encounters are minimal, though mosquitoes bite near the river, so bring repellent.
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FAQFrequently asked questions about Lençóis Maranhenses

Three days is a good fit for Lençóis Maranhenses National Park, which covers two full-day 4x4 or boat trips from Barreirinhas plus a rest day. Add a fourth day to visit Atins or the Preguiças River. Trekkers who cross the dunes from Atins to Santo Amaro need about three days on foot with a guide.
Yes, you can reach Lençóis Maranhenses National Park without a car, since vans and buses run from São Luís to Barreirinhas in roughly 4 to 5 hours. Once there, shared 4x4 trucks and boats cover the main lagoons and villages. Self-driving the dunes is not practical, and a guide or tour operator is the standard way to move around.
Lençóis Maranhenses National Park has no standard entrance fee for most visitors, so you pay mainly for guided transport and tours. A shared half-day 4x4 trip to Lagoa Azul or Lagoa Bonita costs about US$12 to 20. Multi-day treks need a licensed guide, which adds a daily fee of roughly US$40 to 70.
⚠️ Things can change over time, so always validate details locally before you go.

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We 💚 feedbackFinal thoughts on exploring Lençóis Maranhenses

Lençóis Maranhenses National Park combines well with a route through Brazil’s northeast, such as São Luís before it and Jericoacoara or the Delta do Parnaíba after it. I would give it at least two nights, skip the midday 4x4 rush, and bring enough water for longer walks.

✈️ When did I visit Brazil?
Call it good timing or luck, but I was able to celebrate Carnaval in Rio de Janeiro in February 2022, after a round trip in the north and east coast.

✍️ Help improve this page!
The information on this page is based on my own backpacking experience in Brazil, supplemented with up-to-date research and feedback from other travelers. Travel details can change, so if you notice anything outdated or incomplete, feel free to let me know.



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Johan, backpacker and founder of TakeYourBackpackHi, I’m Johan (Netherlands 🇳🇱), the creator of TakeYourBackpack. Over the past 3 decades, I’ve backpacked through 90+ countries across six continents, gaining extensive experience with independent travel, long-term trips, and overland routes.

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