Aruanã and the Rio Araguaia in Brazil

Any Brazilian will tell you that the 2630-km-long Rio Araguaia is richer in fish than any other in the world, and a visit to the 220-km stretch between Aruanã and the Ilha do Bananal during the fishing season is quite an experience. As the receding waters in May reveal sparkling white beaches, thousands of Brazilian and international enthusiasts pour into the area, intent on getting the best camping spots. As many as 400 tent cities spring up, and vast quantities of fish are hauled in before the phenomenon winds down in September, when the rivers begin to rise again and flood the surrounding plains. Without Brazilian contacts, the best way of experiencing this annual event is with one of the specialist tour operators.