A huge and beautiful old green turtle resting on the vibrant hard coral reef

coral coral reef soft coral reef volcanic rock volcanic formation alcyonacea cnidarians octocorallia pennatulacea gorgonian coral holaxonia stolonifera polyps filter feeders filter feeding plankton landscape animals colourful cute animal amazing animals animal behavior salt water fish marine life ocean life sea life ocean sea scuba diving scuba diving wild wildlife ocean conservation marine biology nature marine conservation blue ocean hard corals blue fish turtle sea turtle tortoise hawksbill reptile reptiles tortuga tartaruga