The guys in Delray just sent this out. It is good to remember.
"Hey everyone. Here is a good page with all the kitesurfing/sailing/boating right of way rules:
http://www.kitesurfingschool.org/rules.htm
It is probably a good idea for us to make sure we all understand them and that all the newbies understand them before they hit the water. It is getting crowded out there these days. The link above has a bunch of other stuff covering things like jumping.
Here is the short version:
Sailing Rules
1. Opposite tack rule: A boat on port tack (left leg going forward for kitesurfer) shall keep clear of a boat on starboard tack (right leg going forward for kitesurfer).
2. Same tack rule: A boat to windward (upwind) shall keep clear of a boat to leeward (downwind).
3. Overtaking rule: An overtaking boat shall keep clear of the boat being overtaken. (when you pass someone, you have to keep clear).
Wave Sailing Rules
1. Opposite tack rule: A wave sailor coming in (surfing the wave in) shall keep clear of a wave sailor heading out (jumping the wave).
2. Same tack rule (on the wave): All wave sailors shall keep clear of a wave sailor in front of or nearest to the peak of the wave (the breaking part of the wave)."