Green sea turtle in a beautiful turquoise blue sea with coral and fish around Chichijima, Japan

green sea turtle chelonia mydas sea bed turtle swimming marine life marine biology scuba diving coral sea creatures diving in japan underwater sea pacific ocean aquatic natural world turquoise ocean conservation swimming flippers endangered animals endangered wildlife serene water blue calming tourism sustainable peaceful pollution soothing protected nature ogasawara environmentally friendly beautiful japan reptile animals eco friendly no people vunerable copyspace graceful copy space nobody happy chichijima