I have raced that course many times around Hamo in a outrigger canoe and the tides up there are really big and there is heaps of current around the island.
You really need to know the course and your water up there as the end of the runway has brought many a paddler/outrigger team unstuck as the water is really rough in that particular spot.
It is a beautiful part of the world to race, but it is very challenging and you would have to prepare yourself well and get used to paddling in the choppy s###, backwash off the island, boatwash from heaps of support boats,and submerged rocks.
If you prepare well you will have a ball.
The beers/partying after the race is all worth it



Waz