On the Wave
Taken from windsurfing, a different rule applies if you are riding waves.
The rider in the wave should always be given the right of way.
One should not interfere in any wave-riding session of any board sports like windsurfing, surfing, or wave kiting. They are concentrating on the wave and nothing else around, knowing they have the right-of-way (RoW)in the wave.
Look out for someone dropping into a wave; either let the rider pass or ride to the direction. The one who drops into the wave first does have RoW as well.