Jordi Chias / Woman snorkeller swimming inside lagoon Toau atoll, Tuamotu Archipelago, French Polynesia, Pacific Ocean.

Jordi Chias / Juvenile Green turtle (Chelonia mydas) swimming near the surface, split level view, Fakarava atoll lagoon, Tuamotu Archipelago, French Polynesia, Pacific Ocean.

Jordi Chias / Juvenile Green turtle (Chelonia mydas) swimming near the surface, split level view, Fakarava atoll lagoon, Tuamotu Archipelago, French Polynesia, Pacific Ocean.

Jordi Chias / Juvenile green turtle (Chelonia mydas) reflected in the surface of the window with Snell's window affect, Fakarava atoll inside lagoon at sunset, Tuamotu archipelago, French Polynesia; Pacific Ocean

Jordi Chias / Yellowfin goatfish (Mulloides vanicolensis) inside lagoon Toau Atoll, Tuamotu archipelago, French Polynesia, Pacific Ocean.

Jordi Chias / Black tip reef shark (Carcharhinus melanopterus) patrolling the Fakarava atoll, Tuamotu archipelago, French Polynesia, Pacific Ocean

Francis Abbott / Aerial view of Rangiroa Atoll, the largest atoll of French Polynesia's Tuamotu archipelago, located in the central south Pacific Ocean. The strange colours are due to the sunlight on the aircraft wind...

Roberto Rinaldi / Tipouta Pass, Rangiroa, Tuamotu Archipelago, Polynesia.

Roberto Rinaldi / Holiday resort on Rangiroa with traditional tahitian styled bungalows, Tuamotu Archipelago, Polynesia.

Roberto Rinaldi / Boat in Tipouta Pass that connects the lagoon with the open ocean, Rangiroa, Tuamotu Archipelago, Polynesia.

Roberto Rinaldi / Aerial view of Rangiroa and lagoon, Tuamotu Archipelago, Polynesia.

Roberto Rinaldi / Rangiroa with turquoise lagoon, Tuamotu Archipelago, Polynesia.