The NPS at Puukohola Heiau has a W.A.V.E. program offered those days, first come first served reserved tickets, for a 45 minute ride in a double hulled canoe with a cultural expert. It is funded by the Hawaii Pacific Parks Foundation.
See www.nps.gov/puhe/planyourvisit/the-wave.htm for details and how to get on board.
I have not yet gone on one, so this is all the info I have.
This ride will get you wet. 🐢