We will be staying in Waikiki near the zoo and want to tour Pearl Harbor Sunday, Sept,. 23. We will be flying out that afternoon to the Big Island so our time is somewhat constrained. (Our ride picks us up from our hotel at 3:30pm) I've done a lot of research and have gotten very conflicting information regarding exactly how long TheBus ride is to Pearl Harbor and how long we will need at the Memorial. We plan on making reservations online but can't figure out how early those reservations should be for and what time we should get the bus. We know we need to get to Pearl Harbor an hour in advance in order to pick up our tickets. Can anyone help? Thanks and sorry for the long winded question!