The Igarapé Tarumã-Açu is a watercourse in the state of Amazonas, Brazil, and is a left-bank tributary of the Rio Negro. It enters the larger river just to the west of the city of Manaus, providing a potential access point for paddlers near this major urban center. The water body is part of the Amazonian ecosystem, and one specific location along it is known as Cachoeira Alta do Tarumã, which translates to the High Waterfall of Tarumã, indicating the presence of a waterfall feature. This area is a habitat for fish species, including the introduced Nile tilapia. The surrounding region is characterized by the dense, biodiverse rainforest typical of the central Amazon basin.