Stewart:
We were just in Hawaii......Pearl Harbor is worth the visit but it certainly doesn't look like the movie set. There are sign posted not to leave any valuables in your car so keep that in mind.
If you're only on Oahu for a day, Pearl Harbor and a drive around the island up to the North Shore and back down are well worth the time, rather than golf; IMHO.
Hanauma Bay Reservation isn't far from Honolulu and certainly well worth the visit - just need to book a time to park on the website. We continued up the coast, had lunch at a food truckcourt and continued around the island and back down to Honolulu and our hotel. Easy drive (I live in the NYC suburbs and Honolulu traffic was frustrating but not as bad as here).