Featured on BBC’s series “Blue Planet II,” the coral reefs of French Polynesia host a very rare spectacle to see. Up to 18,000 Marbled Grouper fish migrate to the atoll Fakarava every July, at the full moon high tide. 1,000 grey reef sharks fill this Tuamotu archipelago in search of one thing: these marbled grouper, who have come to spawn. The sharks’ typically feed at night and gentle swim at rest in the day. The sharks live here year round, as it’s an easy place to rest, gently floating in the 3 knot current of the incoming or outgoing tides.
Sharks feeding behavior becomes unpredictable and erratic as darkness falls and the hunt begins, making for an extremely complex, exciting scuba dive. Some fish are lucky to escape the hungry jaws of the sharks.