The Alumine river, located in Alumine, Argentina – near San Martin De Los Andes – is one of the best whitewater rivers that Argentina has to offer. High water season is the best although it may have some class 5 sections when it is high due to the constant non stop action and rapids.
Otherwise this river is an almost two hour long non stop class 4+ rollercoaster ride. Really one of the best rivers that Argentina offers. Definitely try to catch in high season.
The photo above was taken on the lower Alumine – a shorter class 3/4 section near the town of Alumine