Manihi, or Paeua, is a coral atoll in the Tuamotu Archipelago. It is one of the northernmost of the Tuamotus, located in the King George subgroup. The closest land to Manihi is Ahe Atoll, located 14 km to the west. The total population is 816 inhabitants.
Manihi is a relatively large elongated atoll, Its oval-shaped lagoon measures about 10 km (6 mi.) across and 20 km (12 mi.) long, and is ringed by innumerable islets. The lagoon is well-known among snorkelers for its beautiful and diverse marine fauna, including, among other species, the manta ray. There is only one pass to enter the lagoon, located close to the atoll's southern end. It is known as Passe de Tairapa.
The chief village is Paeua. Another important village, Turipaoa, is located in the south-western part of the atoll, and is home to about 400 inhabitants. Several of the islands are inhabited, by populations ranging from single individuals to as many as 400.