EXTRACT I JUST PULLED FROM THE JBA WEBSITE.
http://jbnz.co.nz/index.php?option=com_content&task=view&id=34&Itemid=67
Downhill boating is harder than upstream boating
Therefore in rapids or constrained areas
GIVE WAY TO BOATS COMING DOWNSTREAM
1) Visibility. Compare what you can see when standing just back from the top and the bottom of a flight of stairs. Rocks and hazards are hidden just as the risers are hidden when looking from above.
2) Water speed. At any given boat speed the speed at which you are approaching the immovable rocks and hazards is markedly different depending on upstream or downstream direction.
3) A chance to pause. There is usually a pool at the bottom of rapids, this allows a pause in boating and a chance to plan the next directions. There is no such chance above rapids since these areas are more typically shallow.
PASSING RULES
KEEP RIGHT ON RIVERS
When approaching another boat:
*
each boat moves/turns to the right
*
passing port side to port side
*
the left side passes the left side
*
the drivers side is closest to the drivers side
* KEEP RIGHT ON RIVERS
It is important to realise this is the opposite to how we drive on the left of the road in NZ. (There is some evidence that this difference may account for some crashes of boats and jetskis).
When passing from behind:
* you can boat either side with care