The Lagoons of Lençóis Maranhenses
Eight hours west of Jeri, in Lençóis Maranhenses National Park, lies another set of Sahara-like sand mounds that's worth seeking out. This far-away-from-everything nature reserve along Brazil's top edge is home to a stunning collection of emerald green lagoons, all of which are tucked amid an ever-shifting dune system crafted like a block of Swiss cheese. Each wet season the lagoons are filled anew with rainwater, making them ideal between the dryer months of March and September. Most visitors enter the park from the southeast, exiting the town of Barreirinhas when the sun is low to reach the lagoons in time for shadows to dance across the water.
What you need to know: Cars are not allowed in Lençóis Maranhenses, so you'll have to book a 4x4 tour with one of the local tour agencies in Barreirinhas. You can also make a long day trip to the park from the state capital of São Luís, about 4 hours away by bus.