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It’s not like soaring along in a wingsuit isn’t risky enough, but you won’t believe Alexander Polli can soar successfully navigate this narrow mountain cave until you see it with your own eyes.

The narrow cave, no wider than Alexander is tall, is located in Roca Foradada Mountains in Montserrat, Spain—a location that has inspired this professional Italian Norwegian athlete’s flying dream his whole life. Alexander hopes his success will inspire others not only to ‘climb over their mountains,’ but to also fly right through them!

Full story at YouTube.

Going to the extreme of extreme sports.