Juergen Freund / Diver lowering an artificial reef made of ceramic snowflakes to help rejuvenate the dead reef of El Nido. The 1998 El Nino caused a massive scale coral bleaching to this tourist town that used to have...

Juergen Freund / Umbrella and other human waste thrown out into the coastal waters, settling on the ground becoming marine life habitat, Moluccas Islands, Indonesia, December 2009

Georgette Douwma / Blue-girdled angelfish (Pomacanthus navarchus) on the wreck "Kasi Maru", a Japanese merchant ship sunk in fifty feet of water off Munda in Ironbottom Sound during a World War II bombing raid July 1943...

Wild Wonders of Europe / Banfi / Two Scorpionfish (Scorpaena porcus) lying on artificial reef, Larvotto Marine Reserve, Monaco, Mediterranean Sea, July 2009. BOOK & WWE OUTDOOR EXHIBITION. Wild Wonders kids book.

Wild Wonders of Europe / Banfi / Scorpionfish (Scorpaena porcus) lying on the artificial reef, Larvotto Marine Reserve, Monaco, Mediterranean Sea, July 2009

Wild Wonders of Europe / Banfi / One of the deeper artificial reefs, Larvotto Marine Reserve, Monaco, Mediterranean Sea, July 2009

Wild Wonders of Europe / Banfi / One of the deeper artificial reefs surraunded by Damselfish (Chromis chromis) with a Comber (Serranus cabrilla) in the middle, Larvotto Marine Reserve, Monaco, Mediterranean Sea, July 2009

Wild Wonders of Europe / Banfi / Moray eel (Muraena helena) looking out of a hole in the artificial reef, Larvotto Marine Reserve, Monaco, Mediterranean Sea, July 2009. WWE INDOOR EXHIBITION

Michael Pitts / Mast light of Japanese WWII ship, which has formed an artificial reef in the Marovo lagoon, Solomon Islands

Jeff Rotman / Diver exploring Bridge on Saskatchewan shipwreck, an artificial reef covered with Giant Plumose Anemone (Metridium farcimen), Vancouver Island, British Columbia, Canada, Pacific Ocean Model released.

Jeff Rotman / Diver exploring Bridge on Saskatchewan shipwreck, an artificial reef covered with Giant Plumose Anemone (Metridium farcimen), Vancouver Island, British Columbia, Canada, Pacific Ocean Model released.

Georgette Douwma / Artificial reef / EcoReef designed by Mark Erdmann, with diver. Ceramic structures placed on areas bomb damaged in the 1970s, to encourage coral ecosystem regrowth. Bunaken National Park, North Sulawe...

Georgette Douwma / Artificial reef / EcoReef designed by Mark Erdmann, with diver. Ceramic structures placed on areas bomb damaged in the 1970s, to encourage coral ecosystem regrowth. Bunaken National Park, North Sulawe...

Georgette Douwma / Artificial reef / EcoReef designed by Mark Erdmann, with diver. Ceramic structures placed on reef, bomb damaged in the 1970s. Bunaken National Park, North Sulawesi, Indonesia.

Georgette Douwma / Artificial reef / EcoReef designed by Mark Erdmann, with diver. Ceramic structures placed on areas bomb damaged in the 1970s, to encourage coral ecosystem regrowth. Bunaken National Park, North Sulawe...

Georgette Douwma / Artificial reef / EcoReef designed by Mark Erdmann, with diver. Ceramic structures placed on areas bomb damaged in the 1970s, to encourage coral ecosystem regrowth. Bunaken National Park, North Sulawe...

Georgette Douwma / Artificial reef / EcoReef designed by Mark Erdmann, with diver. Ceramic structures placed on reef, bomb damaged in the 1970s. Bunaken National Park, North Sulawesi, Indonesia.

Juergen Freund / Japanese mini submarine wreck 50 meters away from the Sanko Maru wreck in New Hanover, Papua New Guinea, June 2010.

Juergen Freund / Artificial reef balls that have been in place for about 10 years with some encrusting corals, North Sulawesi, Indonesia, October 2009.

Juergen Freund / Old rubber tyre turned artificial reef, Komodo NP, Indonesia, August 2009

Juergen Freund / Liberty Wreck fully encrusted with corals, sponges and other marine life, Tulamben, Bali, Indonesia.

Juergen Freund / Diver at Japanese mini submarine wreck 50 meters away from the Sanko Maru wreck in New Hanover, New Ireland, Papua New Guinea, June 2010.

Juergen Freund / Artificial reef using ceramic snowflakes help rejuvenate the dead coral reefs of El Nido. The 1998 El Nino caused a massive scale coral bleaching to this tourist town that used to have pristine coral...

Juergen Freund / Artificial reef using ceramic snowflakes help rejuvenate the dead coral reefs of El Nido. The 1998 El Nino caused a massive scale coral bleaching to this tourist town that used to have pristine coral...

Juergen Freund / Artificial reef made of ceramic snowflakes to help rejuvenate the dead reef of El Nido. The 1998 El Nino caused a massive scale coral bleaching to this tourist town that used to have pristine coral re...

Juergen Freund / Artificial reef using ceramic snowflakes help rejuvenate the dead coral reefs of El Nido. The 1998 El Nino caused a massive scale coral bleaching to this tourist town that used to have pristine coral...

Juergen Freund / Julian Caley and Shawn Smith install an artificial reef as part of CReefs four year project to check what life form will inhabit this structure, Coral Life census, Lizard Island, Queensland, Australia...

GEORGETTE DOUWMA / Blue-girdled angelfish (Pomacanthus navarchus) on the wreck "Kasi Maru", a Japanese merchant ship sunk in fifty feet of water off Munda in Ironbottom Sound during a World War II bombing raid July 1943...

GEORGETTE DOUWMA / Corals adorn the wreck of the "Kasi Maru", a Japanese merchant ship sunk in fifty feet of water off Munda in Ironbottom Sound during a World War II bombing raid July 1943. Solomon Islands.

GEORGETTE DOUWMA / Blue-girdled angelfish (Pomacanthus navarchus) swimming over the wreck of the "Kasi Maru", a Japanese merchant ship sunk in fifty feet of water off Munda in Ironbottom Sound during a World War II bomb...

GEORGETTE DOUWMA / The wreck "Kasi Maru" is a Japanese merchant ship sunk in fifty feet of water off Munda in Ironbottom Sound during a World War II bombing raid July 1943. It is overgrown with corals. Solomon Islands.

GEORGETTE DOUWMA / Corals adorn the wreck of the "Kasi Maru", a Japanese merchant ship sunk in fifty feet of water off Munda in Ironbottom Sound during a World War II bombing raid July 1943. Solomon Islands.

GEORGETTE DOUWMA / Blue-girdled angelfish (Pomacanthus navarchus) swimming over the wreck of the "Kasi Maru", a Japanese merchant ship sunk in fifty feet of water off Munda in Ironbottom Sound during a World War II bomb...

GEORGETTE DOUWMA / The wreck "Kasi Maru" is a Japanese merchant ship sunk in fifty feet of water off Munda in Ironbottom Sound during a World War II bombing raid July 1943. It is overgrown with corals. Solomon Islands.

Wild Wonders of Europe / Banfi / Artificial reef submerged in between Neptune grass (Posidonia oceanica) on the seabed, Larvotto Marine Reserve, Monaco, Mediterranean Sea, July 2009

Wild Wonders of Europe / Banfi / Two Scorpionfish (Scorpaena porcus) lying on the artificial reef, Larvotto Marine Reserve, Monaco, Mediterranean Sea, July 2009

Francis Abbott / Wreck of ship 'The Santa', scuttled in July 1988 and now an artificial reef off Menorca, Mediterranean sea.

Juergen Freund / Person Diving on an artificial reef created by the sunken boat HMAS Perth, Albany, Western Australia

Jurgen Freund / Diver exploring the artificial reef created by the wreck of the HMAS Swan, Dunsborough, Western Australia

Juergen Freund / Leatherjacket / Skip Jack (Oligoplites saurus) and artificial coral reef beneath the 2km long Busselton Jetty. Busselton, Western Australia

Juergen Freund / Leatherjacket / Skip Jack (Oligoplites saurus) and artificial coral reef beneath the 2km long Busselton Jetty. Busselton, Western Australia

Michael Pitts / Shipwreck of the 'Fumasuki', Japanese WWII destroyer, Chuuk / Truk lagoon, Chuuk islands, Pacific ocean islands

Michael Pitts / Bow gun of Japanese WWII ship wreck forms artificial coral reef, Truk Lagoon, Micronesia

Michael Pitts / WWII Kasi Maru Japanese freighter sunk, now an artificial coral reef, off coast of New Georgia, Solomon Island

Juergen Freund / Old truck tyres tied together and sunk to form base for artificial reef, Philippines

Juergen Freund / Old bottle underwater encrusted with coral & algae, Papua New Guinea

DOC WHITE / Wreck of Japanese tank forms artificial coral reef, Nippo Maru, Truk lagoon, Solomon Is.

Norbert Wu / Coral has overgrown artificial reef created by old tires, Similan Islands, Thailand

Michael Pitts / Spearfisherman on wreck of Japanese WWII ship 'Kasi Maru' sunk in 1944, Shortland Is. Solomon Is, Pacific. The wreck makes an artificial coral reef.

Michael Pitts / Bridge of Japanese WWII ship forms artificial reef Bairoko, Solomon Is, Pacific. Kasi Maru. Japanese fleet sunk by american warplanes in 1944

Jose B. Ruiz / Artificial reef created by anchoring materials to seabed. Mediterranean

Michael Pitts / Acropora coral on Japanese World WarII shipwreck Kasi Maru Shortland Is Solomon Is, Pacific Japanese fleet sunk by american warplanes in 1944

Roberto Rinaldi / Boat crossing a man made channel in coral reef, Maldives.

Roberto Rinaldi / Wreck, now an artificial reef, with sponges, oysters and sea fans. Kudat, Borneo.

Roberto Rinaldi / Green moray eel (Gymnothorax funebris) and diver on Prince Albert Wreck, Roatan, Honduras. Model released.

Roberto Rinaldi / Diver on Prince Albert wreck, intentionally sunk in the mid-eighties, Roatan, Honduras. Model released.

Roberto Rinaldi / Green moray eel (Gymnothorax funebris) and diver on wreck of "Jade Trader", Guanaja Bay islands, Honduras.

Roberto Rinaldi / Red lionfish (Pterois volitans) on Chinese wooden fishing vessel sunk outside Lankayan, Borneo.

Roberto Rinaldi / Bowfield wreck, formerly called "Relitto del Faro" (the lighthouse wreck), Messina, Italy.

Roberto Rinaldi / Giant moray eel (Gymnothorax javanicus) Halaveli wreck, Halaveli, Maldives.

Michael Pitts / Sponges, fish, and worms on an artificial coral reef that has developed on the wreck of a Japanese ship sunk in World War Two. Solomon Islands, Pacific

Michael Pitts / Soft coral {Dendropnephthya sp} growing on a Japanese World War Two shipwreck in Truk Lagoon, Micronesia

Michael Pitts / Mushroom corals (Alcyonacea) growing on Japanese World Wat Two shipwreck in Truk Lagoon, Micronesia

Michael Pitts / Japanese WWII ship (Kasi Maru) forms artificial reef Shortland Is Solomon Is Pacific japanese