aerial top down of deep bleu Indian Ocean sea water with coral reef and white sand tropical beach , drone fly above small sailboat

aerial ocean marine pollution coral coral reef reef sea water blue boat moored sailboat dive snorkelling swimming vacation holiday travel destination paradise dreaming moheli mwali comoros drone island indian ocean africa islet volcanic fly above waves seascape pristine unpolluted mozambique channel mozambique madagascar african scenic anjouan mayotte east africa nature seychelles marine biodiversity