– Region: Maranhão — PN Lençóis Maranhenses (white dunes + freshwater lagoons)

 – Elevation: 10

 – GPS Coordinates: 2.455° S, 43.140° W

 – Access Difficulty: T2 — Fly São Luís→Barreirinhas (1hr + 4WD) OR bus 4hr São Luís→Barreirinhas + 4WD 

 – Opening Season: Jul–Sep (lagoons full after rainy season — only window for swimming)

 – Winter Room: – Number of Beds: 30  – Showers: No — outdoor

 – Drinking Water: Yes — limited (buy in villages) – Meals & food: Local restaurants in Atins + Santo Amaro villages

– Mobile Signal: No – Payment Methods: Cash — camping free or R$15–20; pousadas R$80–200 | park entry free

 – Reservation Link: Click here to make a reservation

 – Short Description: Lençóis Maranhenses — 1,500km² of brilliant white dunes with turquoise freshwater lagoons (Lagoa Azul, Lagoa Bonita). Completely otherworldly — unlike anything else on Earth. UNESCO tentative list. Jul–Sep only for swimming (lagoons evaporate dry season). 4WD essential. The most photogenic place in Brazil.