Shark nets set up along a stretch of tropical reef to provide safety to swimmers

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 blue sky summer holiday lighthouse deserted island drone view nature reserve seabirds tropicbird infrastructure dive boat shark nets safety