Yūichirō Miura became the first person to ski on Mount Everest on May 6, 1970. He climbed up to the South Col (elevation over 26,000 feet) then skiied down nearly 4,200 vertical feet. The 1975 documentary about Miura won the Oscar for best documentary.
But Miura didn’t stop there – among other things he was the first to ski Mt Fuji, and the oldest to summit Everest at 70 in 2003. A record broken by himself 10 years later.