Most people consider standing on a surfboard in the ocean risky enough, but Belarusian daredevil Olga Naumova decided the ocean was too safe and too oxygenated. So she jumped out of a helicopter at nearly 21,000 feet above Mount Everest—with a surfboard strapped to her feet—carved the air like it was a perfect wave, then casually parachuted down. Fifteen years of sky surfing finally paid off with a Guinness record and the unofficial title of “person least likely to complain about Monday mornings.”

Daredevil goes sky surfing at 20,945 feet for world record