Schooling king angelfish (Holacanthus passer), underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

galapagos islands schooling fish king angelfish marine life ocean holacanthus passer ecuador south america biodiversity coral reef snorkeling diving aquatic habitat sea creatures wildlife fish behavior habitat conservation tropical fish ocean ecosystem unesco site underwater landscape nature sea water snorkeling adventure colorful fish fish schooling marine biodiversity underwater exploration sea fauna reef fish ocean conservation coastal waters underwater ecosystem research aquatic environment fish species underwater wonder ecological diversity underwater adventure sustainable tourism marine environments nature exploration aquatic species fish community marine reserves underwater fauna ocean habitats aquatic scenery oceanography underwater biology