A lost world deep in the interior of Bahia: flat-topped mesas, canyons, caves of blue water and dizzying waterfalls. The Cachoeira da Fumaça drops 340 meters — so tall that the wind shreds the water into mist before it ever touches the ground. Here you hike for days through prehistoric landscapes, swim in turquoise pools and sleep under a sky without a single light. Trekking in its purest form.