group of scuba divers above colorful coral reef at the bottom of tropical sea, yellow broccoli coral, underwater landscape

acropora africa air animal aquarium aquatic arboreum australia beauty blue bottom broccoli bubbles caribbean coral deep diver diving ecosystem egypt environment equipment fauna fish floor group hard indian indonesia landscape life litophyton maldives marine nature ocean pacific porites red reef saltwater scuba sea seascape soft sport stony tropical undersea underwater water wild wildlife yellow