A Green Sea Turtle sleeping on a colourful reef with a blue starfish on its flipper

turtle scuba scuba diving diver snorkeling underwater underwater video underwater cameraman underwater footage great barrier reef blue water tropical destination tropics sea turtle protected species marine biology marine conservation global warming coral coral bleaching travel travel destination tourism tourist australia marine park marine reserve animal encounter fish adventure recreation scuba equipment pacific nature wildlife excitement water activity flipper fins holiday ecosystem plastics animal behavour breath air floating swimming starfish zoo