There is a moment, atop a dune, when the horizon opens up and water appears where it shouldn’t exist. That is how the lagoons of Lençóis Maranhenses reveal themselves to those setting off from Atins: a white desert dotted with freshwater lagoons, each with its own color, shape, and silence.
The largest dune field in South America and a UNESCO Natural World Heritage site since 2024, Lençóis Maranhenses National Park preserves thousands of rain-fed lagoons across its 155,000 hectares of sand. And few bases offer access as direct to this spectacle as Atins, the village at the mouth of the Preguiças River where the park meets the ocean. Here, the lagoons are not a distant destination—they are the landscape that begins just twenty minutes from your doorstep.
The lagoons of Lençóis Maranhenses are born from the rain. Between January and May, water accumulates in the valleys between the dunes, forming natural pools that reach their peak between May and September, displaying shades ranging from transparent blue to emerald green. From October onwards, many begin to dry up, and the landscape transforms once again.
This cycle makes every visit a unique experience. No season repeats the last: lagoons change their shape, gain new neighbors, and sometimes disappear only to be reborn in another part of the park. That is why the itineraries departing from Atins are not fixed. Local guides, who know the dunes like few others, choose each day’s route based on the fullest and most beautiful lagoons at that moment.
Canto de Atins is the most classic excursion for those staying in the village. In about twenty minutes by 4×4 vehicle, or an hour’s walk for those up for it, you reach one of the most unique settings in Lençóis: lagoons nestled in the dunes right near the ocean edge.
One of the largest in the circuit, with deep waters and high surrounding dunes. Ideal for your first long swim in Lençóis.
Calm, clear waters that form natural pools perfect for floating effortlessly, with the sea breeze in the background.
Less crowded, it’s the choice for those seeking quiet. In the late afternoon, the reflection of the dunes on the water makes for the best photos.
A traditional sunset spot. From the top of the dunes surrounding it, watching dusk settle over the lagoon field is a ritual in itself.
The tour can be done in the morning, returning in time for lunch, or in the afternoon, finishing with the sunset over the dunes. During the rainy season, depending on the tide, the itinerary may also include the small Cachoeira do Bonzinho, a trickling freshwater stream flowing through the sands.
The second major itinerary departing from Atins heading in the opposite direction crosses the mangrove forest before reaching the dunes at the far eastern end of the park. The crossing is part of the charm: in just a few kilometers, the landscape shifts from the dense green of the mangroves to the stark white of the sand. Along this stretch, the vehicle parks very close to the lagoons, making the circuit comfortable even for those traveling with children or preferring short walks.
The most famous around Atins. Blue, crystal-clear, and surrounded by high dunes for taking in the vast expanse or sliding down into the water.
One of the largest in the region, featuring the emerald-green hue that gives it its name. It tends to stay quiet even during high season.
Named for the sand formations that emerge from the water as the water level drops. A landscape that changes month by month.
Just like in Canto de Atins, the tour takes place in the morning or afternoon, always with stops for swimming. Between one lagoon and the next, what you truly visit is time in its purest form.
It is worth booking tours in advance during high season and combining both circuits on different days—one in the morning and another in the late afternoon—to experience the lagoons under different lights. Our concierge team manages all the logistics, including private excursions, breakfast on the dunes, and dinner on the dunes at dusk. You can find a complete overview on our experiences page and more itineraries in the Atins Charme Journal.
Staying in Atins means sleeping at the gateway to Lençóis and turning every excursion into a short journey. The three properties of Grupo Charme Atins were designed for those who wish to experience the park with comfort, calm, and authentic Maranhão hospitality.
Chalets surrounded by the buriti palms of the restinga vegetation, just minutes from the departure point for tours. From the Mirante Charme Atins lookout, the sunset offers a glimpse of what awaits in the dunes.
Beachfront and a member of the Roteiros de Charme Association, it combines the beach, pool, and open-air architecture. The perfect base for alternating between lagoons and the ocean.
The group’s premium experience, featuring generous spaces and personalized attention. Ideal for those who desire private excursions and entirely tailor-made days.
Anyone who visits Lençóis Maranhenses quickly learns that lists are merely a starting point. Between Lagoa Tropical and Gaivota, there are hundreds of water mirrors with no signs or names, waiting for the eyes of those passing by. It is common for the most memorable moment of the trip to happen at a lagoon the guide decided to show on the spot, simply because that day its blue was deeper than all the rest.
It is this blend of vastness and surprise that Grupo Charme Atins translates into hospitality. We know the dunes, the tides, and the seasons, designing each excursion so the park reveals itself at its absolute best. If you would like to discuss dates and itineraries, our team is available on our contact page.
In Lençóis, the water teaches what haste conceals: the most beautiful things happen in their own time.
Plan your lagoon days in Atins
Our concierge team creates the ideal itinerary of tours and accommodation for your trip to Lençóis Maranhenses.
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