Italian BASE jumper Uli Emanuele may have just achieved the most technical and difficult jump, ever: the smallest gap flown through by anyone as a pure BASE jump.

“I found this jump three years ago with my friend Bart Cornelis," the 29-year-old revealed on his Facebook page. What followed were three years of training and preparation for his endeavor.

The natural rock formation can be found in Lauterbrunnen, Switzerland and the hole measures under 10 feet (9 feet 10 inches to be exact) at the largest point.

Armed with his wingsuit and hiking poles, Emanuele assesses his challenge and doesn't look back.

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