Stand-up paddle boarding, for those who don't know, involves balancing upright on a thick, buoyant surfboard while using a one-sided paddle to propel yourself through the water, and even catch waves. "SUP" has been around for years, but is getting more and more popular, as evident by Laird Hamilton's championing the sport over at Gizmodo.
Looking to push the sport even further, Jason Starr of Colchester, Vermont spent the last five years working and refining his design for stand-up paddle skiing, which is exactly as it sounds and looks in the pic above: riding atop two skis while using a double-sided, kayak-style paddle.
Jason's even patented the idea. And not just the apparatus and design for the skis, but even the "method" itself, including — wait for it — the use of a jet ski to tow into surf on the skis.
Should any adventurous surfer gets sued for attempting to hang 10 on skis it'll be a total bummer.