Jalapão State Park is one of Brazil's most remote ecotourism destinations—a 158,000-hectare expanse of red sand dunes, natural spring pools, waterfalls, and savanna landscapes in the interior of Tocantins state. On this 3-day private tour from Palmas, stop at the Fervedouro do Buriti spring pool, the Jalapão dunes, and Cachoeira da Formiga waterfall, with transport and full-board accommodation included.