In the countryside of southern China, a team of French cave divers are the first to explore what could be the largest karstic system (a limestone region crossed by the greatest number of underground rivers) in the world. This discovery convinces the local government to develop diving tourism rather than support the mining industry.

Subscribe to see more full documentaries every week:
https://bit.ly/2lneXNy

TRACKS publishes unique, unexpected and untold stories from across the world every week.

Any queries, please contact us at:
[email protected]

#tracks #diving #china