Hi there,
get an Olympus, any of their waterproof, shockproof cameras will do it, and they survive anything, I have had 3 Pentax die on me....
but the 1 Olympus is still going, surviving surf and all kind of treatments..
possibly look up the Sanyo (
http://sanyo.com/xacti/english/products ... index.html) it's bigger but gives you HD videos and a 30 Optical zoom, but I don't think it will take the beating in the surf very long...
The GOPro gives HD and will survive anything (plus it's a wide angle if you like that), but you can't view any footage until you get home, and it's a little bit tiresome to deal with the settings ( there is only 3 buttons to set your setting...) plus you get raw files and some people have trouble dealing with them,
do some reading on those and pick your poison,
Happy paddling,
look up some videos here:
http://www.youtube.com/user/Activeseakayaking some from Olypus some from Go Pro.
but you lose the quality when you upload...
Nick