Yacht swaying and bobbing in the ocean revealing reef in the clear blue waters

scuba scuba diving diver snorkeling great barrier reef blue water tropical destination tropics global warming coral bleaching travel destination tourism tourist australia marine park marine reserve animal encounter adventure recreation pacific nature wildlife water activity ecosystem plastics floating swimming 4k resolution unique view different perspective sea bed cinematic lady elliot island queensland coral reef sun summer holiday deserted island drone view nature reserve seabirds tropicbird infrastructure dive boat glass bottom boat yacht circumnavigate sailing