Diving Into China's Largest Underwater Cave System With Secret Passages | Cave Documentary

In the countryside of southern China, a team of French cave divers are the first to explore what could be the largest karstic system in the world. This discovery convinces the local government to develop diving tourism rather than support the mining industry. Aqua Incognita: Made In China (2017) documentary Subscribe for more videos on all things wildlife and nature: https://bitly.ws/VciZ #caves #underwatercave #diving