This is an attraction about 25kms from Bariloche. It involves a short climb and a visit go several caverns which have been used for 8000 years as shelters for ancient man.
A guide is obligatory and we had a nice guide who was very knowledgeable about geology and the formations in and around Bariloche. It was very interesting and the caves had interesting rock formations...
The view from the top offered 360° view of the surrounding countryside... beautiful.
A restaurant is available for snacks at the end of the tour...which takes about 2.5 hours.
It was a nice alternative to cable cars to various mountain tops in the area.