Something a little less extreme:
BTW I am enjoying the pleasures of doobing around on a kiteboard. Rather than zoom, crash, bash it is a load of fun to ride a bit slower, on a surfboard, foot/feet out of the straps.
Do a nice little carve on a wave. See how many little turns I can get in before the wave crumbles. Do a little bit of pumping the board/wiggling the bum etc. It's a heap of fun and no stress or strain on the body.
