Are you guys talking about the birth place of commercialized wakeboarding? Does freeboarding count? Here are a couple of old mutiny ads, with the hawaii shot dating from c.1935 and the cypress gardens ad dating at c.1964. Obviously, the hawaii shot has been fudged and I'm not about to get into the middle of this political battle, but I still wanted to show it because the rest of the pic is legit.
Also, I was looking on ebay awhile back and there was this phil owens board. He was thought to be the guy that shaped the boards for the gidget movies. Anyway, the boards were meant to be ridden behind boats and they were actually called "wakeboards. I would like to add that the owens tag was taken from that auction listing from months ago, and it is not really my picture.
I think the only origins that could even be remotely pinpointed are those of commercialized skurfing, or wakeboarding, with tony finn and jimmy.