Facebook Co-founder and CEO Mark Zuckerberg recently tried tow-in surfing at Kauai island in Hawaii. Sharing his pictures, Zuckerberg wrote on Instagram, "Trying a new sport in Kauai with one of the best." Zuckerberg practiced the surfing technique with Kai Lenny, a 26-year-old professional surfer who achieved recognition in 2012 with first place at the Hawaii Island Finals SUP pro.