The Aquário Natural
The Aquário Natural complex is justifiably Bonito’s next most popular attraction. Located at the river’s source, 7km from town, the Aquário itself is a small sanctuary with water so clear and full of fish that the experience is like looking into an aquarium – something you can take advantage of by a ride in one of the glass-bottomed boats. In fact, visitors are encouraged to put on a floating jacket, mask and snorkel, and get into the water with the 35 or so species of fish, mainly dourado and 35cm piripitanga fishes – a tickling experience with no danger from piranhas who never swim this far upriver. The sanctuary is accessible by a path from the reception through a swamp and mata nature reserve, the Parque Ecológico Bahia Bonita, replete with wildlife, including white-collared peccaries, agouti and the majestic caramugeiro snail hawk. From the Aquário, the Bahia Bonita, a kilometre-long stretch of river, runs down to meet the Rio Formoso, where there’s a death-slide (a pulley and rope system for exciting splashdowns into the river), and trampoline-based river fun.
The Aquário Natural is only one of several snorkelling locations in the area, though it has by far the most developed infrastructure. If you are on a tight budget, nearby Pousada Bacuri, 500m from the Aquário Natural, has a stretch of river of its own, with dourado fish, four small waterfalls, and a small forest. Tour companies also offer snorkelling trips to the Rio Sucuri and the Rio da Prata, while one of the best local scuba sites is the Gruta do Mimosa, where a guide and permit are required. With enough time to compare sites rather than rush between them, this area can add a clear-water nature focus to 10-day Brazil trips through Bonito and the surrounding region.