While I only dove in Hawaii once (Maui) and it was a long time ago, I’ve been to Oahu many times and have always had a nice time snorkeling with Cap’n Bob, but I’m not sure he has diving onboard. I’d go to s scuba enthusiasts site for recommendations if you’re a serious diver. Have a great trip!

I have been to Hawaii diving. Although I have not dove off of Waikiki I would reccomend going with Red Sail. If your looking for a good group with some experienced dive masters that will either help you out or let you loose down there Red Sail is the one to go through. Very nice boats, good staff. If your a new diver and want to stick next to the dive master just let them know on the boat. They will help you out. Hope this helps!~