Manihi Scuba Diving, French Polynesia. These Manihi photos were taken during our French Polynesia trip in 2008. Manihi is an atoll in the Tuamotu archipelago. It's less often visited than some of it's sister islands like Bora Bora or Tahiti, but it is a premiere diving island where manta rays are a regular attraction. The hotel in Manihi is on a different island from the main village so there aren't many things outside of the hotel.