2 Best Sights in Brasilia and the West, Brazil

If you have time, arrange a guided visit to Caverna Aroe Jari, costing about R$45. The cave's name means "home of souls" in the Bororo language. This mile-long sandstone cave (one of Brazil's largest) can be reached after a 5-km (3-mile) hike through the cerrado, or on the back of a tractor.

The 160-foot-deep Gruta do Lago Azul has a crystal clear freshwater lake at the bottom and smaller side caves in the calcareous rock. The best time to visit is from mid-November to mid-January at around 8:30 am, when sunlight beams down the entrance, reflecting off the water to create an eerie turquoise glow. See stalagmites and stalactites in various stages of development.