Cannon ball approximately 10 cm across from ship wreck of whaling vessel on Pearl and Hermes Reef.

Measuring two cannons from ship wreck of early Nineteenth Century whaling vessel on Pearl and Hermes Reef.

Huge hook for lifting blubber from whale to rendering pot. From ship wreck of early Nineteenth Century whaling vessel on Pearl and Hermes Reef.

Lead ingot from ship wreck of a whaling vessel on Pearl and Hermes Reef.

Sunken buoy on Maro Reef.

Sunken buoy on Maro Reef.

Diver inspecting sunken buoy.

Anthropogenic debris on Maro Reef.

Porthole on Maro Reef. This particular artifact did not appear to be associated with a nearby wreck.

Random debris on Maro Reef.

Random debris on Maro Reef.

Approaching the remains of a shipwreck in a small boat off the NOAA Ship HI'IAlAKAI.

Snorkeling on a shallow shipwreck.

Annuu shipwreck seen in the surfline as large waves pummel the reef.

A school of bluelined snapper (Lutjanus kasmira) seemingly disappearing into a void in the reef

Heaps of round corals reminiscent of piles of cannonballs on men-of-war of old.

Pink and white corals interspersed with patches of green algae giving a striking effect.

A black octopus posing for the camera.

Plates of coral as orderly as dishes in a cupboard.

More like a garden of stone than an array of living corals.

A diverse array of corals on a slope of Rose Atoll. Can you find the fish in the middle of the photograph?

Reef line exposed at low tide at Rose Atoll

Reef line exposed at low tide at Rose Atoll

Cabbage coral

Massive corals looking more like giant mushrooms

Apparently diseased coral to the left of the fish's white tail fin.

Massive corals

An array of corals

A beautiful array of coral fingers

Coral and algae coexisting.

Cabbage coral dominating a slope area

Star coral with polyps retracted

Cabbage coral

Reef scene

Large tabular coral (Acropora sp.)

Pillar coral

Hermit crab with stalked eyes piering out of protective shell

Orange Fin Anemonefish (Amphiprion chrysopterus)

Mushroom coral

Starfish

Massive coral (Porites sp.)

A diverse assemblage of corals

Large tabular coral (Acropora sp.)

Coral patterns

Large tabular coral and numerous other species

Coral reef scene

Scientific diver taking notes on reef transect

Coral reef scene

Giant clam (Tridacna sp.)

A bluestreak goby (Valenciennea strigata) in a sand and rock bottom area