The Río Niblinto de Malleco is a small-volume, class 2-3 tributary of the Malleco River, flowing out of the Reserva Nacional Malleco in Chile's Araucania Region (9th Region). The river carries crystal clear water and runs through a corridor of native forest and verdant vegetation, even though the surrounding hills have been heavily logged. The run covers a section with an average gradient of 15 meters per kilometer (75 feet per mile), making for a moderately engaging paddle.

The recommended put-in is at Puente Centenario, located at the park headquarters, at an elevation of approximately 575 meters. To reach the takeout at Puente Niblinto, paddlers leave Ruta 5 at Collipulli, follow a paved road 9.7 km through Curaco, continue another 31.7 km to the end of the pavement, then turn right and drive 17.2 km on gravel road to the bridge. From the takeout, cross the bridge and continue 7.1 km to reach the put-in at Puente Centenario.

The river is best run after significant rainfall or during the high-water winter months of July and August. Ideal flows are anything above 10 cubic meters per second (approximately 300 CFS). Outside of these conditions, the river may not be sufficiently runnable given its small volume. Paddlers planning a trip should time their visit accordingly, as this is not a year-round run.

There are campsites available along the river, providing options for overnight trips. The topographic map covering the area is titled Laguna Malleco 051, which is useful for trip planning. Nearby attractions include the Termas Tolhuaca hot springs. Other rivers in the vicinity that paddlers may wish to combine with a trip include the Malleco, Dillo, Renaico, Amargo, Cautín, Captren, and Blanco del Sur.