close-up of a sea turtle (cheloniidae) swimming in the sea with clear water on the surface.

animal reptile turtle underwater wildlife sea fish reef amphibian tortoise lizard organism ocean frog close-up cheloniidae swimming clear water surface view tortoise beautiful life people animals mammal nature close-up head isolated biology adventure biodiversity exploration environmental conservation preservation social issues portrait living wild tranquility tourism animal travel visit day exterior tourist destination beauty ecosystem vacation latin america cartagena colombia beach landscape natural marine turtle swimming diving wildlife tropical blue ocean water sea