Audio Guide of Lençóis Maranhenses National Park

The park is open 24 hours a day year-round, as it is a protected natural area, but visiting during daylight hours is recommended for safety. The main access point is Barreirinhas, about 4 hours by bus or car from São Luís; from there, you can join 4x4 tours or walk along trails. More details are available on the official ICMBio website: ICMBio Lençóis Maranhenses.

Admission to the park is free, as it is a public conservation area managed by ICMBio. However, jeep tours, which are common for exploring the dunes, cost around 50–100 reais per person and are paid directly to local operators. I recommend booking in advance through agencies in Barreirinhas to avoid surprises.

It is recommended to spend at least 2–3 days to fully enjoy the park, allowing time for tours in different sectors, hikes, and visits to the lagoons. One day is enough for an introduction, but more time lets you explore on foot and relax without rushing. Plan according to your itinerary from São Luís.

Lençóis Maranhenses is a unique geological formation created by wind and coastal sands over thousands of years. It was declared a National Park in 1981 to protect its dune ecosystem and seasonal lagoons. Culturally, it is important to local communities such as the quilombolas, who have lived in harmony with nature, and it represents the natural beauty of northeastern Brazil. Its significance lies in being a living example of the interaction between desert and oasis.

The best period is between June and September, when rains from the wet season fill the lagoons with crystal-clear water, making the landscape magical. Avoid the period of heavy rains (December to May), as many routes become harder to access; sunset is ideal for photos with golden light. Check current conditions at Visit Maranhão.

Access is limited for people with reduced mobility due to the sandy terrain and dunes, which require walking and special vehicles; there are no paved trails or wheelchair facilities in most areas. Some jeep tours offer more accessible options, but it is recommended to contact ICMBio at +55 98 3349-1066 for personalized advice before planning your visit.

Nearby, in Barreirinhas, you can visit the Preguiças River for a boat ride and views of mangroves, or the village of Atins for unspoiled beaches and local restaurants. There is also the Vassouras or Caburé circuit, with historic ruins and additional lagoons just 30–60 minutes away. For more ideas, explore TripAdvisor Lençóis Maranhenses.

Bring sunscreen, a hat, plenty of water, and comfortable footwear for sand, as the sun is intense and there are no facilities inside the park; join a guided tour so you do not get lost and to respect conservation rules. Book accommodation in Barreirinhas in advance, especially in high season, and consider renting a 4x4 if you are traveling in a group. For emergencies, the visitor center is in Barreirinhas, phone +55 98 3349-1066.