Zhangjiajie Cave
CountryChina
RegionHunan
DiscoveredVarious
Size/Depth9 km surveyed
About Zhangjiajie Cave
A massive karst cave system in the mountains that inspired the floating peaks in Avatar. Features nine sky holes that let in light. Underground rivers and waterfalls flow through the chambers. The yellow dragon cave has the tallest stalagmite in Asia at 19.2 m.