redsea small fish with a white belly and black back hides among large, undulating brown coral formations on a bright, sunny day in a tropical ocean, with the camera looking down

underwater ocean fish coral reef marine life nature aquatic sea tropical underwater photography diving scuba snorkeling blue green colorful vibrant ecosystem habitat biodiversity polyps tentacles structure shape light shadow contrast clarity detail focus composition foreground background seascape underwater world marine ecosystem coral reef ecosystem marine conservation ocean conservation natural beauty underwater exploration tropical paradise exotic destination vacation travel tourism adventure red sea