Alex Mustard / Harlequin sweetlips (Plectorhinchus chaetodonoides) cleaned by a pair of bluestreak cleaner wrasse (Labroides dimidiatus). South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philipp...

Michael Pitts / Eastern Island, Midway Islands, Pacific ocean. Showing runways used in World War II.

Ashley Cooper / Tepuka Island, Funafuti atoll, Tuvalu. This area is extremely low lying and vulnerable to climate change.

Ashley Cooper / Man pushing out boat in Funafuti Atoll, Tuvalu. March 2007. This area is low lying and very susceptable to sea level rise.

Ashley Cooper / Man in boat in Funafuti Atoll, Tuvalu. MArch 2007. This area is low lying and very susceptable to sea level rise.

Ashley Cooper / Island in Funafuti Atoll, Tuvalu. March 2013. This area is low lying and very susceptible to sea level rise.

Ashley Cooper / Beach on Funafuti Atoll, Tuvalu. March 2007. These islands are very low lying and sucseptable to sea level rise.

Ashley Cooper / Beach on Funafuti Atoll, Tuvalu. March 2007. These islands are very low lying and sucseptable to sea level rise.

Ashley Cooper / Coconut seedling (Cocos nucifera) on beach, Funafuti Atoll, Tuvalu. March 2007. These islands are very low lying and susceptible to sea level rise.

Ashley Cooper / Man relaxing in hammock on a beach on Funafuti Atoll, Tuvalu. March 2007. These islands are very low lying and sucseptable to sea level rise.

Ashley Cooper / Funafuti Airport on Funafuti Atoll, Tuvalu, March 2007.

Ashley Cooper / Funafuti Atoll, Tuvalu. These low lying islands are very susceptible to sea level rise, March 2007

Ashley Cooper / Funafuti Atoll, Tuvalu. These low lying islands are very susceptible to sea level rise, March 2007

David Fleetham / Molokini Crater, aerial shot of the crescent shaped islet at mid-morning with charter boats. Maui, Hawaii., June 2011.

Alex Mustard / Red seafan (Melithaea sp) South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philippines. Sulu Sea.

Alex Mustard / A busy coral head, with hard and soft corals. South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philippines. Sulu Sea.

Alex Mustard / Tassled scorpionfish (Scorpaenopis oxycephala) lays an ambush as it rests in perfect camouflage on a coral reef. Baa Atoll, Maldives. Indian Ocean.

Huw Cordey / Aerial view of small coral island, Western Provinces, Solomon Islands.

Pascal Kobeh / Aerial view of the coral reef which builds a lagoon in the atoll, Maldives, Indian Ocean

Pascal Kobeh / Aerial view of the islets and the lagoons which make the atoll, Maldives, Indian Ocean

Alex Mustard / Diver photographing a school of Big eye trevally (Caranx sexfasciatus). South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philippines. Sulu Sea.

Jordi Chias / Black tip reef shark (Carcharhinus melanopterus) patrolling the Fakarava atoll, Tuamotu archipelago, French Polynesia, Pacific Ocean

Jordi Chias / Galapagos shark (Carcharhinus galapagensis) in shallow waters, Bassas da India atoll, Mozambique channel. Indian Ocean

Jordi Chias / Reef manta (Manta alfredi) mouth open feeding at night, South Ari atoll, Maldives, Indian Ocean

Jordi Chias / Nurse sharks (Ginglymostoma cirratum) and Round ribbontail stingray (Taeniurops meyeni) feeding at night, Felidhoo Atoll, Maldives, Indian Ocean

Jordi Chias / Reef manta ray (Manta alfredi) being cleaned by small wrasses at cleaning station, South Ari atoll, Maldives, Indian Ocean

Jordi Chias / Zebra / leopard shark (Stegostoma fasciatum) swimming over the reef, Vaavu atoll, Maldives, Indian Ocean

Jordi Chias / Reef manta ray (Manta alfredi) being cleaned by small wrasses at cleaning station, South Ari atoll, Maldives, Indian Ocean

Pete Oxford / Schoolmaster fish (Lutjanus apodus) Halfmoon Caye, Lighthouse Reef Atoll, Belize.

Pete Oxford / Nurse shark (Ginglymostoma cirratum) Halfmoon Caye, Lighthouse Reef Atoll, Belize.

Alex Mustard / Huge school of Bigeye trevally (Caranx sexfasciatus) swimming over a coral reef. South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philippines. Sulu Sea.

Alex Mustard / Huge school of Bigeye trevally (Caranx sexfasciatus) swimming over a coral reef. South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philippines. Sulu Sea.

Enrique Lopez-Tapia / Aerial view of atolls with surrounding coral reefs, off the coast of New Caledonia, September 2008.

Enrique Lopez-Tapia / Aerial view of atolls with surrounding coral reefs, off the coast of New Caledonia, September 2008.

Enrique Lopez-Tapia / Aerial view of atolls with surrounding coral reefs, off the coast of New Caledonia, September 2008

Alex Mustard / Portrait of male Purple anthias (Pseudanthias tuka) on coral reef. South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philippines. Sulu Sea.

Alex Mustard / Harlequin sweetlips (Plectorhinchus chaetodonoides) with cleaning Bluestreak cleaner wrasse (Labroides dimidiatus) and Bicolour cleaner wrasse (Labroides bicolor) South Atoll, Tubbataha Atolls, Tubbat...

Juergen Freund / Aerial view of Hardy Reef, Great Barrier Reef, August 2011

Mark MacEwen / Aerial view of coral atolls, Maldives, December 2009

Mark MacEwen / Meemu Atoll at sunset, Chaaya Lagoon, Hakuraa Huraa, Maldives, December 2009

Mark MacEwen / Meemu Atoll at sunset, Chaaya Lagoon, Hakuraa Huraa, Maldives, December 2009

Enrique Lopez-Tapia / Aerial view of sand atolls and corals off the coast of the Island of Zanzibar, Tanzania

Enrique Lopez-Tapia / Aerial view of sand atolls and corals off the coast of the Island of Zanzibar, Tanzania

Enrique Lopez-Tapia / Aerial view of sand atolls and corals off the coast of the Island of Zanzibar, Tanzania

Enrique Lopez-Tapia / Aerial view of sand atolls and corals off the coast of the Island of Zanzibar, Tanzania

David Noton / Coral Atolls from the air, South Male Atoll, Maldives

David Noton / Aerial of South Male Atoll, Maldives

Michael Pitts / Outlying islands, Central Province, Solomon islands, Melanesia

Jeff Rotman / Aerial view of fringing coral reef, Palau, Micronesia

David Noton / Coral atolls from the air, South Male Atoll, Maldives.

Jeff Rotman / Aerial view Kayanger Atoll - a coral atoll - Palau

Roberto Rinaldi / Approaching an island in the Maldives during a cruise to the southern atolls.

Alex Mustard / Plastic pollution (diaper/nappy) on the pristine hard coral (Acropora sp.) growth on the remote Tubbataha Reefs, Tubbataha Atolls, Palawan, Philippines, Sulu Sea.

Alex Mustard / Phillipine chromis (Chromis scotochiloptera) swimming around Sea whip corals (Junceella sp.) and sponges, Tubbataha Atolls, Palawan, Philippines, Sulu Sea.

Alex Mustard / Smalltooth emperor (Lethrinus microdon) foraging amongst coral, Tubbataha Atolls, Palawan, Philippines, Sulu Sea.

Alex Mustard / Goldspot seabream (Gnathodentex aureolineatus) shoal swimming over reef, Tubbataha Atolls, Palawan, Philippines, Sulu Sea.

Alex Mustard / Bennett's feather star (Oxycomanthus bennetti) spreading its arms as sunset approaches on the reef, Tubbataha Atolls, Palawan, Philippines, Sulu Sea.

Alex Mustard / Bennett's feather star (Oxycomanthus bennetti) spreading its arms as sunset approaches on the reef, Tubbataha Atolls, Palawan, Philippines, Sulu Sea.

Alex Mustard / Hard coral colony (Pocillopora sp.) on a coral reef with sunburst Tubbataha Atolls, Palawan, Philippines, Sulu Sea.

Alex Mustard / Red sea whip coral (Ellisella sp.) growing on a coral reef, Tubbataha Atolls, Palawan, Philippines, Sulu Sea.

Alex Mustard / Coral reef scene with multiple species of Princess anthias (Pseudanthias smithvanizi), Threadfin anthias (Pseudanthias huchti), Redfin anthias (Pseudanthias dispar) and feathery hydroids (Aglaophenia...

Alex Mustard / Leather coral (Sarcophyton sp.) framed in Snell's window, Tubbataha Atolls, Palawan, Philippines, Sulu Sea.

Alex Mustard / Table coral (Acropora sp.) growing on a reef wall, Tubbataha Atolls, Palawan, Philippines, Sulu Sea.

Alex Mustard / RF - Lionfish (Pterois volitans) pair patrolling a coral reef at sunset, Tubbataha Atolls, Palawan, Philippines, Sulu Sea. (This image may be licensed either as rights managed or royalty free.)

Alex Mustard / RF - Philippines chromis (Chromis scotochiloptera) shoal swimming in water column above hard coral (Acropora sp.) with evening sunburst, Tubbataha Atolls, Palawan, Philippines, Sulu Sea. (This image m...

Alex Mustard / RF - Golden damselfish (Amblyglyphidodon aureus) and Threadfin anthias (Pseudanthias huchti) swimming around a large gorgonian (Subergorgia sp.) on a coral reef wall, Tubbataha Atolls, Palawan, Philip...

David Tipling / Aerial view of mangroves and lagoon, Menai, Cosmoledo Lagoon, Seychelles, Indian Ocean. April, 2023.

David Tipling / Aerial view of beach on Wizard Island, Cosmoledo Atoll, Seychelles. April, 2023.

David Tipling / Aerial view of Grand Polyte islet & Petit Polyte islet, Cosmoledo Atoll, Seychelles, Indian Ocean. April, 2023.

David Tipling / Aerial view of Blue Safari Eco camp on Wizard Island, Cosmoledo Atoll, Seychelles. April, 2023.

David Tipling / Aerial view of Blue Safari Eco camp on Wizard Island, Cosmoledo Atoll, Seychelles. April, 2023.

David Tipling / Aerial view of Blue Safari Eco camp on Wizard Island, Cosmoledo Atoll, Seychelles. April, 2023.

David Tipling / Aerial view of Wizard Island, Cosmoledo Atoll, Seychelles, Indian Ocean. April, 2023.

David Tipling / Aerial view of beach on Wizard Island, Cosmoledo Atoll, Seychelles, Indian Ocean. April, 2023.

David Tipling / Aerial view of Wizard Island, Cosmoledo Atoll, Seychelles, Indian Ocean. April, 2023.

David Tipling / Blue Safari camp sign made from washed up flip flops, Wizard Island, Cosmoledo Atoll, Seychelles. April, 2023.

David Tipling / Beach chairs and parasols on beach, Blue Safari camp, Wizard Island, Cosmoledo Atoll, Seychelles. April, 2023.

David Tipling / Fish Aggregating Device (FAD) washed up in lagoon, Cosmoledo Atoll, Seychelles, Indian Ocean. April, 2023. FAD's are floating platforms cast adrift in the ocean by trawlers that attract small fis...

David Tipling / Beach at northern end of Menai, Cosmoledo Atoll, Seychelles. April, 2023.

David Tipling / Green turtle (Chelonia mydas) female, digging hole in sand at nesting site on beach, Wizard Island, Cosmoledo Atoll, Seychelles. Endangered.

David Tipling / Green turtle (Chelonia mydas) female, digging hole in sand at nesting site on beach, Wizard Island, Cosmoledo Atoll, Seychelles. Endangered.

David Tipling / Green turtle (Chelonia mydas) female, returning to oean after egg laying, Grand Polyte, Cosmoledo Atoll, Seychelles, Indian Ocean. Endangered.

David Tipling / Three people on beach rescuing a stranded Green turtle (Chelonia mydas), Grand Polyte, Cosmoledo Atoll, Seychelles, Indian Ocean. April, 2023. Endangered.

David Tipling / Three people on beach rescuing a stranded Green turtle (Chelonia mydas), Grand Polyte, Cosmoledo Atoll, Seychelles, Indian Ocean. April, 2023. Endangered.

David Tipling / Green turtle (Chelonia mydas) hatchling swimming out into lagoon, Cosmoledo Lagoon, Cosmoledo Atoll, Seychelles, Indian Ocean. Endangered.

David Tipling / Seychelles skink (Trachylepis seychellensis) peering out from gap in wooden post, Wizard Island, Cosmoledo Atoll, Seychelles.

David Tipling / Seychelles skink (Trachylepis seychellensis) peering out from gap in wooden post, Wizard Island, Cosmoledo Atoll, Seychelles.

David Tipling / Seychelles skink (Trachylepis seychellensi) basking on beach, Wizard Island, Cosmoledo Atoll, Seychelles.

David Tipling / Horned ghost crab (Ocypode ceratophthalmus) predating on a Hermit crab, Wizard Island Cosmoledo Atoll, Seychelles.

David Tipling / Horned ghost crab (Ocypode ceratophthalmus) predating on a Hermit crab, Wizard Island Cosmoledo Atoll, Seychelles.

David Tipling / Madagascar white-eye (Zosterops maderaspatanus menaiensis) perched on branch, Cosmoledo Atoll, Seychelles.

David Tipling / Dimorphic egret (Egretta dimorpha) pair, white and black morphs, standing at the shore, Wizard Island, Cosmoledo Atoll, Seychelles.

David Tipling / View looking north along Wizard Island, Cosmoledo Atoll, Seychelles. April, 2023.

David Tipling / Sooty terns (Onychoprion fuscatus) huge flock in flight over lagoon near breeding site at dusk, Wizard Island, Cosmoledo Atoll, Seychelles.

David Tipling / Sooty terns (Onychoprion fuscatus) huge flock in flight over lagoon near breeding site at dusk, Wizard Island, Cosmoledo Atoll, Seychelles.

Alex Mustard / Green turtle (Chelonia mydas) female, swimming over coral reef with sunburst, Tubbataha Atolls, Palawan, Philippines, Sulu Sea. Endangered.