A base jumper who flew through a tiny rock arch called his stunt "the BatCave", and with good reason.
Alexander Polli, an athlete and professional skydiver, loaded a video of himself tearing through the mountainside arch at speeds of 250kmh, reported the Daily Mail.
It started with Polli jumping from a helicopter, which hovered above the Roca Foradaad Mountains in Spain, and he passed through the cave after a 20-second free fall.
Polli became famous last year when he started flying into target strikes, and showed he could fly close to the ground and land with pinpoint accuracy.
One of his predecessors, Jeb Corliss, also tried flying into targets, but ended up breaking both his legs, said Epic TV.
Polli said life had taken on a new dimension after joining the base-jumping community.
"We have our own way of living. A life within life," he said.
"Comfort and materialistic gain have become secondary. Mother Nature offers us the only playground we need and close human interaction is our drive force."
He said he knew how precious life was, because he was living on the edge of it.
Polli recently posted on his Facebook page: "The most important thing in life is to be yourself. Unless you can be Batman. Always be Batman."
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