The Río Bullilleo is a river in the Maule Region of Chile, flowing through the comuna of Parral. A significant feature of the river is the Embalse Bullileo, a reservoir created by a dam. A primary access point for paddlers is located just below the dam's discharge, approximately 47 kilometers from the town of Parral via a paved road. The river offers distinct sections suitable for different skill levels. One notable route is a 16-kilometer upper section characterized by class three and four whitewater, interspersed with long stretches of flatwater. The overall character of the paddling experience combines technical whitewater challenges with more relaxed scenic floating, suitable for those seeking variety. The area around the river supports other recreational activities such as horseback riding and mountain climbing, indicating a generally accessible and multi-use outdoor environment. For amenities, Camping Bullileo is situated along the riverbank, providing a potential basecamp for paddlers approximately one hour from Parral and four hours south of Santiago, with access via route L-735. The reservoir itself, Embalse Bullileo, is noted as a destination with a wonderful view.