Fakarava, hundreds of grey sharks and marbled groupers swimming in the pass, 4K UHD

Carcharhinus amblyrhynchos grouper marbled Epinephelus polyphekadion shark grey shark group schooling sharks shark swarm swimming pass ocean Fakarava Tetamanu undersea life tropical open water gathering coral reef sea south pacific French Polynesia scuba diving day deep requin requin gris groupe loche marbrée mérou camouflage banc de requins passe profond plongée sous marine Polynésie française 4K UHD 4K video video sous marine vie sous marine