...I've flown with them, but I never took a boat. They seemed to be super strict, and the consensus (from asking + researching web) was that it'd be rather impossible to slip through with the surfboard story. I guess Delta got burned during the Sidney Olympics, when they cracked some of the slalom boats, and so they categorically disallowed kayaks ever since. So, personally, I decided not to risk it and flew other airlines when I needed to take a boat. Hope this helps,
tom.
PS. From previous research:
http://pub97.ezboard.com/fukriversgu...icID=288.topic
http://kayakchile.hypermart.net/FlyingWithBoats.htm