Cavernas del Viejo Volcan Parque Cerro Leones (Old Volcano Caverns)

The Old Volcano Cave is a supernatural cave in the list of the best caves in Argentina. The caverns are at an altitude of about 900 m (3,000 ft) and are reachable by a steep walkway. It was named after a prominent explorer and academic in Argentina, Perito Moreno, and it is known as a Nature wonder in San Carlos de Bariloche, Argentina. Based on artifacts in the cave sediments they left paintings on the cave walls, the caves of the Cerro Leones were believed to have been inhabited during the last 8,000 years. And it is also considered as the first cave used by the Tehuelches as a workshop and for cooking and then it was used as a cemetery.

Additionally, the Volcan Parque Cerro Leones Cave is ranked at the top three longest caves, but visitors must crawl a few meters to get into it. The opening is 30 meters wide and 10 meters high, but the cave quickly narrows to a crawl. However, behind the crawl is a path that widens to the end and allows you to walk erect. The cave is 130 meters long and ends with a little lake. Visitors to this cave are provided with a helmet and a headlamp.