Groups of Green Sea Turtles swim amongst the ocean currents and swell in shallow waters

underwater lights laying resting survey study lights great barrier reef gbr green sea turtle coral sponges marine science scuba diver ocean underwater reef animal 4k resolution first person view fpv unique swimming sea freediving snorkeling fins tail endangered species fishing turtle glides chelonia mydas reptile flippers shell friendly floating travel tourism marine reserve national parks first nations australia protected ocean current blue water scuba course open water