Brazil Ecotourism Surges as Lençóis Maranhenses Receives UNESCO Status

Following its inscription as a UNESCO World Heritage site, Brazil's Lençóis Maranhenses National Park is experiencing an ecotourism boom, prompting new community-led trekking regulations for the 2026 season.

The Core Transit Update

Ecotourism corridors and adventure transit networks are seeing high growth along Brazil's northeastern coastline. Legally established in 1981 and inscribed as a UNESCO World Heritage site on August 1, 2024, the 156,562-hectare Lençóis Maranhenses National Park features a 90,000-hectare dune field filled with seasonal rainwater lagoons.

To protect this sensitive environment and support the 4,000 traditional residents living inside the boundary, the environmental agency ICMBio has updated rules for the Travessia dos Lençóis trekking route, requiring advance bookings at community support points in Baixa Grande, Queimada dos Britos, and Betânia.

Park Dimensions & Gateway Transits

Planning an ecotourism trip to northeastern Brazil requires comparing park physical features alongside airport and road transit details. The following tables outline the national park's parameters and travel gateways.

Lençóis Maranhenses Statistic	Technical Parameter Metric	Tourism Value / Impact
Total Park Area	156,562 hectares	Protected coastal dune & wetland ecosystem
Active Dune Field	~90,000 hectares	White dunes reaching heights of 30 meters
Coastal Interface	~80 kilometers	Wilderness coastline on northeast Brazil
Local Population	4,000+ residents	Traditional communities managing services
Barreirinhas Visitors	76,666 (Sept 2025)	Principal gateway hub (+56.28% YoY)
Santo Amaro Visitors	35,249 (Sept 2025)	Close access point (+40.73% YoY)

Lençóis Maranhenses National Park physical and tourism statistics.

Entry Gateway Point	Distance to National Park	Primary Transit Mode Connection	Strategic Passenger Advice
São Luís Airport (SLZ)	~253.6 km	Private transfers / Regional bus lines	Main international air gateway hub
Parnaíba Airport (PHB)	~198.3 km	Highway taxi / Shared van transfers	Secondary regional airport connection
Barreirinhas Town	< 5 km	4x4 dune transport vehicles	Hub for river tours & dune excursions
Santo Amaro Town	< 2 km	Walking access / 4x4 vehicles	Closest entry point to the dune lakes

Lençóis Maranhenses gateway airports and local transits.

Traveler Logistics Guide

From a ground-level perspective, the best way to navigate this is to fly into São Luís Airport (SLZ), book a shared mini-bus transfer or private taxi for the 253.6-kilometer road trip to Barreirinhas, and arrange a local 4x4 vehicle to reach the park, as standard rental vehicles cannot handle the deep sand tracks surrounding the dunes. Checking sand driving rules is recommended.

To organize your trekking and lagoon tour:

Pre-Book Trekking Stops: The Travessia dos Lençóis trekking season requires advance reservations for meals and beds with community-run guesthouses in the Primitive Zone (Baixa Grande and Queimada dos Britos).
Target the Best Months: Travel between May and September, when the rainy season has ended and the seasonal lagoons are at their maximum depth and brilliance.
Explore Atins and Preguiças: Combine your dune hikes with a boat excursion down the Preguiças River from Barreirinhas to Atins, which is a major kitesurfing hub along the coast.
Prepare for Desert Hiking: Carry a minimum of 3 liters of water, polarized sunglasses, and high-SPF sunscreen. Walking is typically done barefoot, as the sand remains cool from the constant Atlantic breeze.

Infrastructure Impact Assessment

The introduction of community-based reservations for the 2026 trekking season helps manage visitor traffic across the park's fragile sand ecosystems.

By distributing visitor arrivals between Barreirinhas (which grew to 76,666 visitors in September 2025) and Santo Amaro (which grew to 35,249 visitors), regional planners ensure that tourism spending directly funds community conservation, housing, and sustainable road transit development.