bargained for. >> that's when he skyrocketed down. >> chris adams lives on lake harris in florida. name your water sport, and you can bet that he'll grab a bunch of friends and do it. >> it's a beautiful, big lake. we'll take the boat out and we'll go slalom skiing, knee boarding, wakeboarding. >> in 2006 he discovers a new water sport. kite tubing. it's a cross between water skiing and, well, flying. >> basically after a certain speed the kite tube will gain lift and fly behind the boat. >> soon chris invites his friends to the lake to try out his new toy. >> chris called me up one day and said, hey, i got this kite tube. you sit on it kind of like a jet ski and it has a 15-foot wing span, and you can actually get, you know, 10, 20, 30 feet of air. i was like, count me in.