Never used a leash ever, and never thought is was a good idea, but I've seen a in a number kite mags a lot kiters using them in surf (surf style of leash).
Is it ok to use leashes in surf vs. TT with a recoil type of leash?
I'm heading to Barbados this March, and saw a comment that a leash might be a good idea because of the rocky shore line. I guess this makes sense, but still concerned about getting smashed in the head with the board.