Cross the Rio Preguiças by ferry, climb a sharp rise of wind-sculpted sand, and find Lagoa Bonita: a shimmering pool framed by white dunes. This short 4x4-and-walk circuit from Barreirinhas delivers intense views, a cool swim, and a close look at Lençóis Maranhenses’ seasonal lagoon system.
Cross the Rio Preguiças by ferry, climb a sharp rise of wind-sculpted sand, and find Lagoa Bonita: a shimmering pool framed by white dunes. This short 4x4-and-walk circuit from Barreirinhas delivers intense views, a cool swim, and a close look at Lençóis Maranhenses’ seasonal lagoon system.
The 4x4 grumbles away from Barreirinhas and the river opens like a moving wall — the ferry crossing of the Rio Preguiças signals the gateway to Lençóis Maranhenses. Sand pushes at the tires and the guide points to a ribbon of white dunes that rise and fall like breathing hills. At the trailhead the land runs hot and open; in an hour you trade engine clatter for soft sand and the wind’s voice.
Verified experiences and guided adventures in the surrounding area.
Operated by Jurema Transporte e Turismo · Barreirinhas, Maranhão
The 4x4 grumbles away from Barreirinhas and the river opens like a moving wall — the ferry crossing of the Rio Preguiças signals the gateway to Lençóis Maranhenses. Sand pushes at the tires and the guide points to a ribbon of white dunes that rise and fall like breathing hills. At the trailhead the land runs hot and open; in an hour you trade engine clatter for soft sand and the wind’s voice.
Lençóis Maranhenses is not a desert so much as a seasonal landscape: coastal sediment and wet-season floods combine to create a patchwork of dunes and freshwater lagoons across roughly 155,000 hectares. Local communities—Barreirinhas among them—have long worked the river and coast for fishing and transport; today small eco-tour operations shepherd visitors to viewpoints like Lagoa Bonita.
The short hike includes an 80–100m climb over loose sand to a rim that frames a bright blue lagoon. The water, fed by rains, invites a cool swim; birds and small reptiles patrol the lagoon margins while the dunes keep shifting with each season.
Practical guidance: arrive mid-morning for softer light and quieter lagoons, bring at least 2 liters of water, sun protection, and footwear that handles sand. The walk is short but steep in patches; pauses for photos and a swim are part of the schedule. Respect marked areas, carry out trash, and plan transportation back to Barreirinhas—the park is remote and services are limited. This is a sensory, low-technical outing best for travelers wanting a compact dose of one of Brazil’s most unusual coastal landscapes.
The on-foot portion is about 1 hour with an initial steep 80–100m sand climb to the viewpoint; it’s rated easy and suitable for most fitness levels but the loose sand can be tiring.
Yes—when lagoons are filled after the rainy season swimming is common; check with your guide about current water levels and safe entry points.
Tours typically include 4x4 transport from Barreirinhas and ferry crossing of the Rio Preguiças; confirm pickup point and return details when booking.
The best window is roughly June–September, after rains fill the lagoons; you’ll see the brightest pools and most reliable swimming then.
Jurema Transporte e Turismo operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




The 4x4 grumbles away from Barreirinhas and the river opens like a moving wall — the ferry crossing of the Rio Preguiças signals the gateway to Lençóis Maranhenses. Sand pushes at the tires and the guide points to a ribbon of white dunes that rise and fall like breathing hills. At the trailhead the land runs hot and open; in an hour you trade engine clatter for soft sand and the wind’s voice.
The 4x4 grumbles away from Barreirinhas and the river opens like a moving wall — the ferry crossing of the Rio Preguiças signals the gateway to Lençóis Maranhenses. Sand pushes at the tires and the guide points to a ribbon of white dunes that rise and fall like breathing hills. At the trailhead the land runs hot and open; in an hour you trade engine clatter for soft sand and the wind’s voice.
Lençóis Maranhenses is not a desert so much as a seasonal landscape: coastal sediment and wet-season floods combine to create a patchwork of dunes and freshwater lagoons across roughly 155,000 hectares. Local communities—Barreirinhas among them—have long worked the river and coast for fishing and transport; today small eco-tour operations shepherd visitors to viewpoints like Lagoa Bonita.
The short hike includes an 80–100m climb over loose sand to a rim that frames a bright blue lagoon. The water, fed by rains, invites a cool swim; birds and small reptiles patrol the lagoon margins while the dunes keep shifting with each season.
Practical guidance: arrive mid-morning for softer light and quieter lagoons, bring at least 2 liters of water, sun protection, and footwear that handles sand. The walk is short but steep in patches; pauses for photos and a swim are part of the schedule. Respect marked areas, carry out trash, and plan transportation back to Barreirinhas—the park is remote and services are limited. This is a sensory, low-technical outing best for travelers wanting a compact dose of one of Brazil’s most unusual coastal landscapes.