1350-2471 - Wave breaking over shallow coral reef, Ailuk atoll, Marshall Islands, Pacific

1350-2446 - Hermit crab, Coenobita perlatus, Bird I., Mili, Marshall Islands (N. Pacific).

1350-2554 - Pair of false clown anemonefish, Amphiprion ocellaris, in anemone, Daiun, Negros, Philippines.

1350-2515 - False clown anemone fish, Amphiprion ocellaris, Dauin, Dumaguete, Negros Island, Philippines.

1350-2543 - Feather star on sea fan, and scalefin anthias, Pseudanthias squamipinnis, Kilima steps, Puerto Galera, Mindoro, Philippines.

1350-2509 - Nudibranch, Atlantis house reef, Dumaguete, Negros Island, Philippines.

1350-2518 - Needle cuttlefish, Sepia aculeata, front view at night, Dumaguete, Negros Island, Philippines.

1350-2520 - Mantis shrimp, Odontodactylus scyllarus, Dauin, Dumaguete, Negros Island, Philippines.

1350-2444 - Electric eel, Electrophorus electricus; this air-breathing freshwater fish can deliver an electric shock up to 650 volts and naturally occurs in the Amazon river basins of South America including Brazil and Guyanas; photo taken in captivity.

1350-2536 - Painted frogfish, Antennarius pictus, white phase, Sabang wreck, Puerto Galera, Mindoro, Philippines.

1350-2514 - Tube anemone close-up, Cars, Dumaguete, Negros Island, Philippines.

1350-2321 - Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil

1350-2343 - Parrotfish sleeping, Sparisoma sp., head detail, Ponta da Sapata, Fernando de Noronha national marine sanctuary, Pernambuco, Brazil (S. Atlantic)

1350-2318 - Olive ridley turtle hatchling, Lepidochelys olivacea, Costa do Sauipe, Bahia, Brazil (South Atlantic)

1350-2316 - Crab preying on dead portuguese man-of-war, Physalia physalis, Praia do Forte, Bahia, Brazil (South Atlantic)

1350-2317 - Olive ridley turtle hatchling, Lepidochelys olivacea, Costa do Sauipe, Bahia, Brazil (South Atlantic)

1350-2319 - Caiman or jacare, Caiman crocodilus yacare, at night, southern Pantanal, Mato Grosso do Sul, Brazil

1350-2314 - Green sea turtles hatching, Chelonia mydas, Fernando de Noronha, Pernambuco, Brazil.

1218-1496 - Couple scuba diving while exploring the coral reefs of Bonaire, Netherlands Antilles, Caribbean, Central America

1218-1497 - Man scuba diving while exploring the coral reefs of Bonaire, Netherlands Antilles, Caribbean, Central America

1116-49672 - A research diver from the MOC Marine Institute glues broken coral back together at Molokini Marine Preserve off the island of Maui, Hawaii. The coral is tagged and will be monitored, Maui, Hawaii, United States of America

1116-49671 - Research divers from the MOC Marine Institute map out coral damage at Molokini Marine Preserve off the island of Maui, Hawaii. In the future, data from here will help to determine the health of Hawaii's reefs, Maui, Hawaii, United States of America

1116-49082 - A male scuba diver in bright blue water, Makena, Maui, Hawaii, United States of America

1116-49674 - SCUBA diving instructor Anthony Manion practices skills with four students in a hotel pool, Maui, Hawaii, United States of America

1116-49711 - An aerial view of Balicasag Island, a tiny island in South West Bohol in the central Philippines. It is famous for scuba diving on the deep, vertical walls and there are some fantastic hard coral gardens at snorkeling depths, Balicasag Island, Philippines

1116-49670 - Wire coral goby (Bryaninops yongei) on wire coral (Cirrhipathes sp.), a relative of black coral.

1116-49673 - Research divers from the MOC Marine Institute glue broken coral heads back together and map out coral damage at Molokini Marine Preserve off the island of Maui, Hawaii. In the future, data from here will help to determine the health of Hawaii's reefs, Maui, Hawaii, United States of America

1116-49667 - A photographer lines up with a camera in a housing to shoot a large red soft coral fan, Indonesia

1116-49669 - Divers exploring the prop and rudder at the stern of The Carthaginian, a Lahaina landmark, that was sunk as an artificial reef off Lahaina, Maui, Hawaii in December 2005, Maui, Hawaii, United States of America

1116-49728 - Divers on a WW II Corsair fighter plane off Southeast Oahu, Oahu, Hawaii, United States of America

1116-49086 - Silhouette of a scuba diver in a cave, Makena, Maui, Hawaii, United States of America

1116-49676 - A photographer under a massive school of millions of sardines, Moalboal, Cebu, Central Visayas, Philippines

1116-49713 - A split scene with a shallow hard coral reef below water and island above with the live aboard dive vessel Infiniti, Philippines

1116-49712 - An aerial view of the live aboard vessel Infiniti for scuba diving off Balicasag Island, a tiny island in South West Bohol in the central Philippines. It is famous for scuba diving on the deep, vertical walls and there are some fantastic hard coral gardens at snorkeling depths, Balicasag Island, Philippines

1116-49675 - Chambered nautilus (Nautilus pompilius) and divers, Palau, Micronesia

1116-49668 - A photographer lines up with a SLR in a housing with a macro lens to shoot at tiny crab perched on soft coral, Indonesia

1116-49677 - Divers explore a drop off covered with sponges and gorgonian and alcyonarian coral, Philippines

1116-49707 - Aerial view of Mokuho’oniki Islet and Kanaha Rock near the island of Molokai, Maui County, Hawaii, United States of America

1116-49666 - The Malabar grouper (Epinephelus malabaricus) is one of the largest and most common cod found on coastal reefs. It can weight over 300 lbs and reach 4 feet in length, Fiji

1116-49732 - The Backwall at Molokini Marine Preserve drops down to 300 feet. Various reef fish stick close to a crevice here, Molokini, Maui, Hawaii, United States of America

1112-5678 - Young whale shark (Rhincodon typus), being biopsied by researcher at El Mogote, Baja California Sur, Mexico, North America

1112-5676 - Young whale shark (Rhincodon typus), filter feeding near snorkeler at El Mogote, Baja California Sur, Mexico, North America

1202-470 - A gorgonian sea fan (possibly Echinogorgia species) octocoral on a tropical coral reef, in Gaafu Dhaalu atoll, The Maldives, Indian Ocean, Asia

1202-464 - A diver around a Stylophora species hard coral, on a tropical coral reef, in Gaafu Dhaalu atoll, The Maldives. Indian Ocean, Asia

1174-8871 - Underwater view of diver wearing wet suit and flippers, diving near rocks, United States of America

1174-8872 - Low angle underwater view of diver wearing wet suit and flippers, sunlight filtering through from above, United States of America

1174-8868 - High angle underwater view of diver wearing wet suit and flippers, air bubbles rising, United States of America

1174-8874 - Underwater view of diver wearing wetsuit, diving goggles and oxygen cylinder, air bubbles rising, United States of America

1174-8866 - Underwater view of diver wearing wet suit and flippers, sunlight filtering through from above, United States of America

1174-8870 - High angle underwater view of diver wearing wet suit and flippers, sunlight filtering through from above, United States of America

1174-8863 - Underwater view of diver wearing wetsuit and flippers diving just below the water surface, United States of America

1174-8873 - Underwater view of diver wearing wetsuit, diving goggles and oxygen cylinder, air bubbles rising, United States of America

1174-8865 - Underwater view of diver wearing wet suit and flippers, sunlight filtering through from above, United States of America

1174-8869 - Underwater view of two divers wearing wetsuits, diving goggles and oxygen cylinders, United States of America

1174-8867 - Underwater view of diver wearing wet suit and flippers, sunlight filtering through from above, United States of America

1116-48272 - Scuba divers in the Great Blue Hole dive site on the Belize Barrier Reef. This site was made famous by Jacques Cousteau, who declared it one of the top five scuba diving sites in the world, Belize

1116-48269 - Scuba divers at Joe's Wall Dive Site, Belize Barrier Reef, Belize

1116-48275 - Scuba diver in the East Wall dive site, Belize Barrier Reef, Belize

1116-48273 - Scuba divers in the Great Blue Hole dive site on the Belize Barrier Reef. This site was made famous by Jacques Cousteau, who declared it one of the top five scuba diving sites in the world, Belize

1116-47554 - Scuba diver obscured by bubbles underwater at the dive site Blue Channel, Roatan Marine Park, Bay Islands Department, Honduras

1116-47553 - Scuba diver underwater at the dive site Cemetery Wall, South side of Roatan Island, Bay Islands Department, Honduras

1116-48911 - Female diver doing giant stride off dive boat, Negril, Jamaica

1116-48274 - Scuba diver at Joe's Wall Dive Site, Belize Barrier Reef, Belize

1116-47552 - Scuba divers in Roatan Marine Park, West End Wall dive site, Roatan, Honduras

1116-48276 - Scuba diver underwater looking at the camera, Belize

1116-48270 - Scuba diver at Three Amigos Dive Site, Belize Barrier Reef, Belize

1116-48648 - Terminal male Bullethead Parrotfish (Chlororus sordidus) photographed while scuba diving the Kona Coast, Island of Hawaii, Hawaii, United States of America

1116-48525 - Scuba diver swims through lava arches with sun rays, Cathedrals dive site, Lanai City, Lanai, Hawaii, United States of America

1116-46821 - Divers pictured hanging at 15 feet for a decompression stop before surfacing. The diver in the lead has released a safety float to mark their position to boats above, Maui, Hawaii, United States of America

1116-46823 - A diver feeds a green sea turtle (Chelonia mydas), an endangered species, at Sea Life Park's Underwater Sea Trek Adventure in their big tank, Oahu, Hawaii, United States of America

1116-46427 - A School Of Hawaiian Dascyllus (Dascyllus Albisella), A Hawaiian Endemic Fish, Over A Bleached Antler Coral (Pocillopora Eydouxi) Off The Kona Coast, Kona, Island Of Hawaii, Hawaii, United States Of America

1116-46542 - Banded Sea Urchin (Echinothrix Calamaris) On A Sandy Bottom Off The Kona Coast, Kona, Island Of Hawaii, Hawaii, United States Of America

1116-46541 - A Coastal Manta Ray (Manta Alfredi) Swiming Though A Scuba Diver's Bubbles That Was Photographed While Scuba Diving The Kona Coast At Night, Kona, Island Of Hawaii, Hawaii, United States Of America

1116-46539 - Jellyfish (Pelagia Noctiluca) With Fish Prey Photographed During A Blackwater Scuba Dive Several Miles Offshore Of A Hawaiian Island At Night, Hawaii, United States Of America

860-288008 - (Mnemiopsis leidyi), the warty comb jelly or sea walnut. Only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

860-288001 - A tiny Benthic Hydromedusa, with a bell size of less than one centimeter, (Ptychogastria polaris), swimming in front of an iceberg, Tasiilaq, East Greenland

860-287988 - Split image of guide with snowmobile waiting the divers, only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

860-288000 - (Saccharina latissima), laminaria, a genus of 31 species of brown algae commonly called kelp covering a wall close to an iceberg with scuba diver silhouette, Tasiilaq, East Greenland

860-287983 - Only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

860-288542 - Green Turtle (Chelonia mydas) and diver, Tenerife, Canary Islands, Spain, Atlantic Ocean

860-287960 - Scuba diver surrounded by shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

860-288002 - (Mnemiopsis leidyi), the warty comb jelly or sea walnut. Only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

860-287997 - (Saccharina latissima), laminaria, a genus of 31 species of brown algae commonly called kelp with some anemones covering a wall close to an iceberg, Tasiilaq, East Greenland

860-287989 - Only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

860-287961 - Scuba diver surrounded by shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

860-287968 - Scuba diver on the sandy bottom surrounded by shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

860-287982 - Only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

860-287966 - Scuba diver with big Gulf grouper (Mycteroperca jordani), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

860-287992 - Only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

860-288525 - Divers photographer, Olivier in full session of photography on one of the many white corals which is between the second and the third reef wall to 80 meters deep, Mayotte

860-288539 - Green Turtle (Chelonia mydas) and diver, Tenerife, Canary Islands, Spain, Atlantic Ocean

860-288162 - Roughtail stingray (dasyatis centura). Tenerife, Canary Islands.

860-287996 - A tiny Benthic Hydromedusa, with a bell size of less than one centimeter, (Ptychogastria polaris), swimming in front of an iceberg, Tasiilaq, East Greenland

860-287999 - (Dendronotus robusta) nudibranch on brown algae commonly called kelp in front of an iceberg, Tasiilaq, East Greenland

860-288005 - A tiny Benthic Hydromedusa, with a bell size of less than one centimeter, (Ptychogastria polaris), swimming in front of an iceberg, Tasiilaq, East Greenland

860-287994 - Spit image of a scuba diver diving close to an iceberg, only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

860-288010 - Only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

860-287985 - Only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

860-287993 - Laminaria (Saccharina latissima), a genus of 31 species of brown algae commonly called kelp in front of an iceberg, Tasiilaq, East Greenland

860-287986 - Laminaria (Saccharina latissima), a genus of 31 species of brown algae commonly called kelp in front of an iceberg, Tasiilaq, East Greenland