Photo session last weekend with pro brother, 600mm lens, I've surfed for 30 years, I learned SUP in one hour, dominated my home break of Pitas Point, Mondos, Marys above Ventura, CA.  Smooth ride, from Indicator to the sand, every wave.  Crazy speed with a paddle, full exploration, signed autographs on the beach later, its like 1964 all over again....
http://picasaweb.google.com/hypersailor ... y17azxrwE#
I won't do it in flat water, and its a core workout, but if you have 99 ski days, play tennis you'll barely feel the burn.  Its longboarding, take any wave you want.
			