* The Amazon River: The main river itself is a primary habitat.
* Major tributaries: This includes rivers like the Negro, Madeira, and Xingu.
* Lakes and lagoons: Connected to the main river system, these areas also provide suitable environments.
The specific range of the Amazon River dolphin stretches from Peru in the west to Guyana in the east, and from the Andes Mountains in the west to the Atlantic Ocean in the east.