The Río Tunuyán flows through Mendoza province in Argentina and offers a combination of Class 3 and Class 4 whitewater suitable for both rafting and kayaking. The river is runnable in the stretch near La Consulta, a town in the Valle de Uco wine-growing region of Mendoza province.

A commonly offered trip covers approximately 40 kilometers and is typically run over two days. The paddling season runs from November through March, corresponding to the Southern Hemisphere spring and summer when snowmelt from the Andes feeds the river and water levels are most suitable for paddling.

The Río Tunuyán is one of several whitewater options in Mendoza province. Other rivers in the region include the Río Mendoza (Class IV), Río Diamante (Class V), and Río Atuel (Class II or IV), giving paddlers visiting the area a range of difficulty options to consider when planning a trip. The city of Mendoza, the provincial capital, serves as a practical base for accessing the region and has an international airport with connections to Buenos Aires and Santiago.