Scuba Diving with Marquises Diving. Islands and atolls such as Tahiti, Rangiroa, Fakarava, Hiva Oa, are full of incomparable diving spots that will please all divers, from the amateur to the professional. The archipelago of the Marquesas Islands is a true underwater sanctuary, recognized thanks to the oceanographic mission Pakaihi I Te Moana, which explored the fabulous marine natural heritage of the archipelago, presumed exceptional and still poorly known.