We are landing in Oahu (first-timers) on Dec 13 and staying till Dec 20. We were planning on renting a car for a part of the stay so we could drive to the north shore and a few other places at our pace. We're staying at the Ilikai Marina at Waikiki beach and our hotel/condo stay does not come with a parking spot. Considering how expensive parking is, I am thinking of the following options. Please help with your suggestions.
1. Rent a car while we land, find a reasonable parking spot near the hotel and return the car after 3 days. Spend the second half without a car.
2. Take a shuttle or a cab from the airport to our hotel. Rent a car (either from the airport of somewhere in Waikiki) for the second half of our stay.
3. Rent a car and keep it for the entire duration. (Will pick this if people think it's worth it in spite of the cost)
4. Don't rent a car at all. Find means of transport for whatever we want to do.