The South China Karst is one of the world’s most spectacular examples of a subtropical karst landscape – a terrain formed when water dissolves bedrock, creating caverns, sinkholes, and underground rivers. In this thrilling documentary, experts descend into Cloud Ladder Hall, a chamber so vast it has its own weather system. After several days camping and exploring, the team maps the entrances and exits to pinpoint how the airflow flows through the chamber, revealing how the cave’s unique shape enables clouds to form inside it.
The documentary features endangered, cave-dwelling monkeys, fearless climbers seeking their next thrill, the deepest and most dramatic sinkholes on the planet, and an expedition to explore, illuminate, and photograph the Miao Room, at over 10 million cubic meters, the largest known cave chamber on Earth.
