Underwater diver swimming above reef, with orange sea fan, Similan Island, Thailand, Asia

Orange gorgonian sea fan, Christmas Island, Australia.

A giant oceanic manta ray hovers over a cleaning station near a sea fan, Raja Ampat, Indonesia.

Denise Pygmy Seahorse (Hippocampus denise) on Sea Fan. Gorontalo, Sulaweis, Indonesia

Sea fan (Solenocaulon sp.), Dumaguete, Negros Island, Philippines, Southeast Asia, Asia

Thousands of scalefin anthias (Pseudanthias squamipinnis) and sea fan, possibly Plexauridae, Puerto Galera, Mindoro, Philippines, Southeast Asia, Asia

Colourful coral reef with soft corals Dendronephthya.