Take a thrilling (40 min - 1 hour) buggy ride through the dunes and you'll be rewarded with a fresh water lagoon. Lagoa Azul and Paradiso actually lie next to one another and share the same white sand and tranquil bright blue waters. You will find a couple of beach side restaurants which offer delicious food and a place to relax under a shady palapa.
These lagoons might be with its volume of water reduced due to the evetually dry weather in the area