Dan -- We are also going on Marquesas cruise (on August 12). You mentioned that the snorkeling in Rangiroa was even better than some of the dives. We're signed up to dive in Bora Bora (Tapu), Nuku Hiva, Rangiroa (reef and Tiputa pass), and Moorea (Shark Gallery). Did you do any of these other dives? Any comments on our selections? Was there time to hit the dives in Rangiroa and do some snorkeling?

Also, were there a lot of divers on your cruise? Was anyone not able to dive because the excursions were full? (We waited a week or so after the online booking opened to send in our choices and I hope we don't get shut out from any dives).

Thanks much for any help! And sorry for all the questions! (I'm just so excited about the trip!)