The Pasimoni River is a remote paradise, where monster peacock bass reign supreme. This untouched river is located in the upper headwaters of the internationally renowned Rio Negro in the Brazilian Amazon. It is a tributary of the Rio Casiquiare, which is a conduit between the Amazon and Orinoco river systems, creating an ecosystem unlike any other.

The Casiquiare River is the world’s largest natural river bifurcation, connecting the Orinoco and Amazon River systems. Approximately 200 miles long, it acts as a natural waterway, diverting up to 30% of the Upper Orinoco’s water into the Rio Negro (a major tributary of the Amazon River), and enabling boat travel between the two basins and up into the tributary, the Rio Pasimoni.

Unlike other rivers farther south in the Rio Negro basin, the Pasimoni has seen minimal sport fishing since the 1990s, making it one of South America’s prime locations for giant peacock bass.

A labyrinth of blackwater oxbow lagoons, jungle-lined riverbanks, white sand beaches, ancient trees, local native tribes and the distant calls of howler monkeys set the stage for an angling experience like no other.