Audio Guide of Blue Lagoon

Lençóis Maranhenses National Park is open daily from 8:00 a.m. to 6:00 p.m. To reach the Blue Lagoon, take a 4x4 from Atins (the eastern side of the park), then walk about 10–15 minutes across the dunes from the entrance; book tours with local agencies or check the official ICMBio website.

Admission to the national park costs R$25 for Brazilians and R$125 for foreigners (valid for 10 days). There is no extra fee specifically for the Blue Lagoon, but check for updates on the official tourism portal.

Set aside at least 2–3 hours to walk across the dunes, enjoy a swim, and take photos. If you combine it with other nearby lagoons, plan for a full half day for the complete experience.

The Blue Lagoon is one of the park’s most iconic lagoons, formed by the accumulation of rainwater in basins between white dunes, a unique geological phenomenon that attracts thousands of visitors. Its turquoise color comes from the purity of the water and minerals, symbolizing the natural beauty of Maranhão.

The best season is from June to September, when the rains fill the lagoons (with a peak in July and August). Go early in the morning to avoid crowds and intense heat, ideally at sunrise for spectacular photos.

It is not accessible for wheelchairs or people with reduced mobility, as it requires walking 1–2 km across loose sand dunes. Choose lagoons closer to entrances or adapted tours; check with local guides for alternatives.

Nearby you will find Bonita Lagoon (about 30 minutes away by 4x4), the Preguiças River, and Atins Beach. Explore the village of Atins for kitesurfing or combine your visit with the park’s main entrance for more dunes.

Bring sunscreen, water, a hat, and comfortable shoes for walking on sand; do not use drones without permission. Download an audio guide from IAudioguia for information in English while you explore, and book your 4x4 in advance during high season.