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.
He took his equipment to film at three different locations -- the entrance of the cave, and two dolines -- sinkholes that have formed into natural skylights -- at 2.5 kilometres and 3.5 kilometres into the cave.