Take an incredible drone flight through the world's biggest cave

At a length of some 9 kilometres (5.6 miles), Hang Sơn Đoòng in Vietnam, near the Laos border, is the largest known cave in the world. Inside is a large, fast-flowing river; its own microclimate; a chamber 5 kilometres (3.1 miles) long, 200 metres (660 feet) high and 150 metres (490 feet) wide; and some of the world's biggest stalagmites, some of them up to 70 metres (229 feet) high.


That is taller than One Franklin Square in Washington, DC, which stands 64 metres (210 feet) high.

Consider those proportions. Now consider the brave man -- photographer Ryan Deboodt -- who explored it with a DJI Phantom 2 quadcopter, a Canon 6D DSLR and EF 16-35mm f4 wide-angle lens, and a GoPro Hero4 Black to create a breathtaking video of this natural wonder for Oxalis, the company that will be taking guided tours into the cave.


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[link to vimeo.com]