It is an impressive natural castle-like rock formation created by wind and river erosion. It was named after José Antonio Pincheira, who led the aborigine resistance and sheltered there. It may be accesses through a hanging bridge.
Opposite the castles, there is a complex offering services to visitors and a huge community of trees. This is a resting place and a spot to start your trekking, horse rides, photographic safaris or bike ride. The Malargue River offers the possibility of good fly fishing.
There is also a camping site and a restaurant preparing the traditional roast goat , home made bread and other typical “criollo” (creole) dishes. There is also a tea-time service offering mate and buns and fried pastries.