In a new video posted to YouTube by EpicTVadventure, wingsuit daredevil Alexander Polli manages to fly through a narrow cave at speeds of more than 155 mph.
According to the video's producers, the mountainside cave in Montserrat, Spain is no wider than Polli is tall.
Polli told the producers that he hopes his success will inspire others not only to "climb over their mountains," but to also fly right through them!
Mobile users click to watch the video: http://youtu.be/8L8UCfxmtSw
Also download our 10News mobile and tablet apps to stay up-to-date with developing stories: http://www.10news.com/about/mobile.