Just Oahu. Definitely hiitting Pearl Harbor. We may island hop one day. My GF is going for work so I tagged along, so it may be tough to bounce around from each island.
I did the island hopping thing a number of years ago. We stayed a couple of days one island than moved on to another. It's time consuming. Check out of the hotel, dirve to airport, returni the rental car, check in for flight, flight time, pickup baggage, pickup rental car, drive to hotel, checkin. Most of a day is shot each time you change islands. It wasn't too bad as we were there for two weeks. On subsequent trips I've limited my stay to two islands.
I don't care for Honolulu. It always struck me a NYC with palm trees. More hookers on the streets than any other city I can recall. I was going to suggest you have dinner at John Dominis on Akui St but just googled it and it's been closed. One of the Hawaiian TV shows opening scenes had surfers on big waves. It was shot from John Dominis. I used to book the table overlooking the surfers when I made my travel plans. It was a tough seat to get.
Hanauma Bay is about 15 minutes west of Waikiki great snorkeling. Past Diamond Head. It's where Elvis filmed Blue Hawaii. The place is a jewel. Continue north and you'll be in Te'o country. Somewhere up around Laie. I passed a roadside trailer with a handpaintd sign "Huli Huli Chicken" (Barbecue Chicken) If you see one, stop and have lunch. Tasty. Place I stopped at was nothing but locales. I was welcomed.
Make the turn west at Kahuku Pt and you'll come to Sunset Beach. One of the opening scenes of Preminger's "In Harm's Way" (John Wayne, Kirk Douglas) was shot there. Hugh O'Brian and whoever played Kirk Douglas's wife in that flick where asleep drunk on the the beach when the Zero's arrived to attack Pearl (in the movie). I think it's there or Waimea Bay. It's a deja vu scene where you get there and look aroudn and say "I know this place."
There's another jewel nearby at Waimea St Park. on the North Shore. You can swim there but I remember the restaurant where we ate on a porch amid peacocks and such. I'll take that ambiance anytime over the downtown hotel fare.
Route 99 cuts through the mountains north/south from Haleiwa to Pearl City. I played golf early one morning at a course called Mililani. It might be the first tee I don't recall anymore that looks down to the the southern end of the island. I got out of the cart with the usual focus on getting my first shot of th day off the tee and unto the fairway. I walked to the tee oblivious of the surrounding, bent over and teed the ball and as I stood up I had an another Deja Vu moment. I spun around 360 degrees looking at the mountains behind me. One of the people in the foursome recongnized my look of astonishment and quietly said, "Schofield Barracks is off to your right. Wheeler Field to your left. Down below you to the right is the Arizona."
If you've seen any movie on the attack on Pearl Harbor, like From Here To Eternity", this golf course is on the attack line the Zeros took, right over that tee. I could see the superstructure of the Arizona burning, the captized Oklahoma, the West Virginia, the chaos. I ended up switching carts and riding with my "narrator". He was retired Navy and had been been in the harbor on a destroyer that fateful morning. I have no idea what I shot the day but it was the best day I ever had on a golf course.