In the morning, at 07:00, you will depart for Barreirinhas (4 hours drive) along a good road. Along the way, we see local plantations. Barreirinhas is a very peaceful and charming town, situated on the banks of the Pregisas River. Lençóis Maranhenses National Park, located close to the city, is a wonder of nature, with unbelievable sand dunes. From March to September, nature forms blue lakes between the dunes. At 2:00 pm you will depart in a 4x4 vehicle to the heart of Lençóis, where we will take a tour of Lago Azul and swim in the lakes. We will stay there until late afternoon to enjoy the beautiful sunset on the dunes. In the evening, we return to Barreirinhas, where we can swim in the hotel's pool, stroll through the city's quiet night streets or enjoy the river at a local restaurant. Overnight hotel stay.