Humphead wrasse (Cheilinus undulatus).

Humphead wrasse (Cheilinus undulatus).

Humphead wrasse (Cheilinus undulatus) in initial phase prior to changing sex.

Nurse shark with remora close to gills.

An orbiculate cardinalfish (Sphaeramia orbicularis) as seen head-on.

Reef scene.

School of barracuda (Sphyraena forsteri) and black triggerfish (Melichthys niger)

School of barracuda (Sphyraena forsteri) and black triggerfish (Melichthys niger)

Reef scene.

Reef scene.

Reef scene.

Reef scene with school of damselfish.

Reef scene.

Table coral (Acropora sp.).

Reef scene.

Reef scene with green damselfish.

Reef scene with green damselfish.

Reef scene.

Prawn-goby (Amblyeleotris sp.)

Pinnate spadefish (Platax pinnatus).

School of fish silhouetted in the sunlight.

Vertical reef wall.

Whitetip shark (Triaenodon obesus).

Valve on shipwreck in marine lake at Palau.

Table coral (Acropora sp.).

Large anemone and clownfish.

Large anemone and orange-fin anemonefish (Amphiprion chrysopterus)

Large anemone and orange-fin anemonefish (Amphiprion chrysopterus)

Reef scene with school of purple queen fish (Pseudanthias pascalus).

Reef scene with school of purple queen fish (Pseudanthias pascalus) and bicolor chromis (Chromis margaretifer)

Cabbage coral.

Cabbage coral.

Cabbage coral.

Coral unidentified.

Christmas tree worm (Spirobranchus gigantea), a sabellid worm.

Coral unidentified.

Coral unidentified.

Diver between vertical walls on coral reef with shark cruising in the distance.

Diver between vertical walls on coral reef

Diver swimming over the reef

Diver swimming over the reef

Fluted giant clam (Tridacna squamosa).

Giant clam (Tridacna sp.)

Moray eel (Gymnothorax sp.)

Nudibranch (Phyllidia varicosa).

Nudibranch (Phyllidia varicosa).

Vertical wall reef scene.

Reef dropping off to the abyss

A beautiful patch of various coral species.

Looking over the edge of the reef to the abyss