Photographer Ryan Deboodt has a drone through the Hang Son Doong guided cave in Vietnam and so explored the largest cave in the world.

Hang Son Doong Die, the cave of river and mountain, Phong Nha Ke Bang situated in the National Park in central Vietnam near the border with Laos. In its interior a river flows, the tearing in some places, is tame in others and sometimes not even to see. After each rainy season he carves a new path through the stone tunnel. Where it flowed ever, remains Sand. Therefore, the Hang Son Doong has many beaches. And she's so gigantic, to form their own clouds.

only 2009 helpful manner the input again. Howard measured them gradually from. We quickly found: What Ho Khanh had since found in the jungle, was the largest cave in the world.