Whiptail Stingrays swim through fish shoal in clear shore water, Drone top-down

whiptail stingray swim fish shoal clear water shore aerial maldives dasyatidae pink ray sea shallow overhead topdown crystal sandy beach school small fulidhoo whipray common pateobatis fai brownish wildlife tropical marine through sand feeding drone high angle wild habitat underwater fauna limpid transparent surface sunlight refraction caustics pattern ripple texture swarm