Mandacaru

Mandacaru is a village in Northern Maranhão, on the outskirts of Lençóis Maranhenses Mostly serving as a quick stop for daytrippers from Barreirinhas, there is now a small inn in the building.

Get in
Boat to Atins and Barreirinhas once a day, R$ 5. Negotite a fare with any boat at the pier. You can walk to Atins in about 1.5 hours.

Eat
No real restaurants, but any of the bars should be able to serve you a cheap set dish around lunch.

Sleep
Ask for a private rom or a hammock.

Go next
Just a few hundred metres away is the village of Bar da Hora, perhaps unique on the planet in being named after a bar (now closed).
 * Atins