Rangiroa is the largest atoll in the Tuamotu, and one of the largest in the world. It is part of the Palliser group. It is about 220 miles northeast of Tahiti. The atoll consists of about 415 motus, islets and sandbars. There are approximately one hundred narrow passages (passes), called hoa, in the fringing reef.It has daily connections with Tahiti, an exceptional lagoon and passes which are good sites for scuba diving attract a steady number of tourists. These are accommodated in some hotels and guesthouses.
Rangiroa offers some of the best dives in the world in and around the Tiputa Pass. Sedentary common bottlenose dolphins (Tursiops truncatus) regularly play group in the Pass. They can be viewed from the mainland but it is also one of the few places where they can be approached in scuba diving.