A scuba diver swims alongside a large Green Sea Turtle as it glides through the blue tropical water

green sea turtle chelonia mydas marine reserve freediving turtle snorkeling marine science scuba diver scuba course reef underwater open water padi australia endangered species sea blue water shell ocean current swimming flippers ocean reptile animal interaction following floating tourism fins friendly panoramic glides protected animal byron bay travel holiday spot 4k resolution fishing unique national parks greet first person view julian rocks tail fpv first nations spotted behaviour pattern