The Cave That Hid a Jungle Underground | Son Doong, Vietnam

Deep beneath the forests of central Vietnam, Hang Son Doong contains an underground river, enormous chambers, drifting mist, and a jungle growing below the surface. This is the true story of how local forest expert Ho Khanh found the entrance in 1990, lost it beneath the jungle, and later guided a British-Vietnamese expedition back to the cave. We follow the 2009 survey, the geology that carved the world's largest known single cave passage, and the two collapsed dolines that allow sunlight and life to enter. Subscribe to True Turning Points Stories for more real stories that changed the world. #SonDoong #Vietnam #Cave #Discovery #Science #History