That year, at the age of 21, he set a speed record for an ascent of the Matterhorn of four hours and ten minutes.

The pair holds the speed record for the ascent of Everest by the North Face, 43 hours to the summit and back.

[2][3] In 1997, he returned to Everest to make the first snowboard descent from the world's tallest mountain.

[4] The ride set an unprecedented altitude record at the time, although was a bit more than 500 feet below the actual summit.

[7] He climbed the route in memory of his friend Sébastien Gay, who died the year before in a skiing accident.