With birds chirping sweetly and the 80-foot Onomea Falls rushing above him, nineteen-year-old pro slackliner Alex Mason caught his balance on a course that snaked up to the waterfall's edge.
In what could be a world's first, Mason traversed an eight-line "slackladder" across 120 feet of waterfalls in Hilo, Hawaii, reports Outside Magazine. And naturally he threw in a few tricks.
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Mason didn't just set this whole magnificent course up on a whim -- or without help. He's a pro who has been slacklining since 2008. At 16, he won the World Slackline Championship in Vail. Outside Magazine called him a "slacklining wunderkind."
The slackline course in Hawaii required nearly a mile of lines and cable to create. Mason worked with famed slackliner Andy Lewis on what project sponsor Red Bull dubbed a slackladder, basically a series of lines zigzagging through the tropical spot. Getting from one line to the next higher one required carefully planned transitions made more challenging from the damp, slippery lines.
Take a look at it here: