I think you need VR goggles to enjoy this
http://www.euronews.com/2016/12/20/the-choranche-cave-in-the-vercors-massif-reveals-some-of-its-secrets Click on the goggle symbol at the bottom right corner of the video If you move your mouse around the video changes viewpoint just like your head turning while taking a cave tour. David Locklear ( on furlough at work )
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