Fervedouro Bela Vista is a 15m in diameter pool located near the town of San Felix in the State of Tocantins. What makes the pool appealing to visitors is its crystal clear blue water. To protect the soil and the surrounding area by the pool, visitors have to walk over a wooden platform. Visitors can also experience the pool's natural spring which influences the heat of the water. Alternatively, visitors can also experience the pool during a night dive.