Hi, we are visitng Kauai and Hawaii for the first time in February. We are making an overnight trip from Kauai to Oahu. While in Oahu we will be visiting Pearl Harbor ( first day) and then Bishop Museum and possibly the zoo and Diamond Head the following day. We are staying at Outrigger on the Reef. My question is what is the easiest and most economical way to get to the museum and zoo from the hotel? We will be renting a car but would like to drive as little as possible. Thanks!