The Río Lules in Tucumán, Argentina is a whitewater run rated Class II-III, offering a multi-hour paddling experience through a remote and densely vegetated canyon environment. The put-in is located at the triple confluence in the village of Potreros de las Tablas, approximately one hour's drive from the city of Tucumán. The run typically takes between two and a half to three hours to complete, with duration varying according to water level — higher flows generally produce a more dynamic experience.

The take-out is at a place called La Quebrada de Lules, near the town of Lules. This landmark is well known locally, so asking residents for directions is a reliable way to locate the finish point.

The most significant hazard on this run is a broken dam encountered a few kilometers into the descent. At low water levels this feature is manageable, but it requires mandatory scouting at high water. There is no exit from the canyon between the put-in and take-out, so paddlers should be prepared for a full commitment once on the water. The canyon walls are steep and the surrounding vegetation is dense jungle, characteristic of the yungas (subtropical montane forest) ecosystem of northwestern Argentina.

The corridor passes through wild terrain with steep walls and several attractive side creeks entering the main channel. The area around La Quebrada de Lules, located roughly 3 kilometers from San Isidro de Lules, is recognized as a notable natural feature within the Tucumán region and draws visitors interested in the surrounding forest environment.

Water level has a direct effect on the character of the run — more water increases the difficulty and intensity of the rapids. Paddlers should factor this into their planning when choosing when to visit.