832-398433 - galaxy night view. High resolution photo

1116-51677 - A young sea turtle (Chelonia mydas) swims underwater; Maui, Hawaii, United States of America

1116-49729 - Young woman in red bikini snorkels over coral reef, Molokini, 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

1116-49673 - 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

1116-49675 - 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

1116-49730 - Three young people free diving over a Hawaiian reef, 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

1116-49731 - A young couple free diving in clear water over a Hawaiian reef, Hawaii, 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

1116-48274 - 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

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

1116-47215 - Snorkeling In Benguerra Island, The Second Largest Island In The Bazaruto Archipelago, Mozambique

1116-47216 - Snorkeling In Benguerra Island, The Second Largest Island In The Bazaruto Archipelago, Mozambique

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

1116-43728 - A Teenage Girl Swims Underwater Along The Water's Surface, Tarifa, Cadiz, Andalusia, Spain

1116-43559 - Scuba Divers Posing Underwater, Ixtapa-Zihuatanejo, Guerrero, Mexico

857-95790 - Freediver hanging underwater under tour boat full of tourists, Nusapenida, Bali, Indonesia

857-95792 - Diving with mantas, Nusapenida, Bali, Indonesia

857-95789 - Photographer underwater, Komodo, Nusa Tenggara Timur, Indonesia

857-95791 - Two freedivers having fun underwater, Nusapenida, Bali, Indonesia

857-95577 - Freediving under a boat, Komodo, Nusa Tenggara Timur, Indonesia

1116-41494 - Slate pencil sea urchins (Heterocentrotus mammillatus) colour the hard coral in this Hawaiian reef scene with three free divers, Molokini Marine Preserve off the island of Maui, Maui, Hawaii, United States of America

1116-41501 - A young lady free diving off Molokini Marine Preserve off the island of Maui, Maui, Hawaii, United States of America

1116-41502 - A snorkeler dives on a healthy hard coral reef near Two Tree Island off Kadavu Island in the southeast corner of Fiji, Fiji

1116-41499 - Two women free diving at Molokini Marine Preserve off the island of Maui, Maui, Hawaii, United States of America

1116-41496 - Two young women free diving with black triggerfish (Melichthys niger), Molokini Marine Preserve off the island of Maui, Maui, Hawaii, United States of America

1116-41495 - Slate pencil sea urchins (Heterocentrotus mammillatus) colour the foreground of this Hawaiian reef scene with a young woman free diving with black triggerfish (Melichthys niger), Molokini Marine Preserve off the island of Maui, Maui, Hawaii, United States of America

1116-41500 - Two men free diving over a Hawaiian hard coral reef with slate pencil sea urchins (Heterocentrotus mammillatus), Hawaii, United States of America

1116-41493 - A girl snorkeling over table coral and reef fish off Apo Island, Philippines

1116-41503 - A group of divers and a manta ray (Manta alfredi) on one of the corners of the Backwall at Molokini Marine Preserve, Maui, Hawaii, United States of America

1116-41497 - A young woman free diving with black triggerfish (Melichthys niger), Molokini Marine Preserve off the island of Maui, Maui, Hawaii, United States of America

1116-41440 - A Tourist Swims Underwater With A Sea Lion At Los Islotes National Marine Park Espiritu Santo Island, La Paz Baja California Mexico

1116-40003 - This dive site off the Kona coast is known as A Touch of Gray and is home of several juvinile Grey reef sharks (Carcharhinus amblyrhynchos), Hawaii, United States of America

1116-39998 - Diver and a well camouflaged Commerson's frogfish (Antennarius commersoni) perched at the bow of the wreck of the Alma Jane off Sabang Beach, Puerto Galera, Mindoro, Philippines.

1116-40002 - This dive site off the Kona coast is known as A Touch of Gray and is home of several juvinile Grey reef sharks (Carcharhinus amblyrhynchos), Hawaii, United States of America

1116-39760 - A diver swims over The Carthaginian, a Lahaina landmark, that was sunk as an artifical reef off Lahaina, Maui, Hawaii in December 2005. The Atlantis submarine visites the site several times every day, Maui, Hawaii, USA

1116-40001 - Diver along a drop off covered with gorgonian and alcyonarian coral, Fiji

1116-39989 - Scuba diver with a large school of Bluestripe Snappers (Lutjanus kasmira) swimming over healthy reef, Lanai City, Lanai, Hawaii, United States of America

1116-39963 - Tourists above on a canoe and a Whale Shark (Rhiniodon typus) below with it's mouth open. This is the world's largest species of fish, Oslob, Philippines

1116-40005 - A photographer lines up with his smart phone in a housing on this Green sea turtle (Chelonia mydas) off the coast of Maui, Hawaii, United States of America

1116-39781 - Diver at the entrance to First Cathedral off the island of Lanai, Hawaii, United States of America

1116-39784 - Diver at one of the many openings around the dive site called First Cathedral off the island of Lanai, Hawaii, United States of America

1116-39967 - A commercial whale shark encounter with a feeder above on a canoe and a Whale Shark (Rhiniodon typus) below. This is the world's largest species of fish, Oslob, Philippines

1116-39988 - Scuba diver looking at bright Butterflyfish (Chaetodontidae), Lanai City, Lanai, Hawaii, United States of America

1116-40000 - Divers are framed by the twin openings at a dive site known as Skull Cave off the Kona coast of the Big Island, Hawaii, United States of America

1116-39964 - A commercial whale shark encounter with a feeder above on a canoe and a Whale Shark (Rhiniodon typus) below. This is the world's largest species of fish, Oslob, Philippines

1116-39757 - As a diver shines her light, schooling Pennantfish (Heniochus diphreutes) swim over antler coral on the outside of Molokini Marine Reserve off the island of Maui, Maui, Hawaii, United States of America

1116-39759 - Diver at the entrance to a cavern off the island of Gato, Bohol Sea, Philippines

1116-39758 - Diver and schooling Yellowfin Goatfish (Mulloidichthys vanicolensis). This species turns red at night and when they are in caves during the day, Kauai, Hawaii, United States of America

1116-39737 - Alcyonarian coral stands upright on the bottom at 100 feet while divers in the background explore the wreck of the Alma Jane off Sabang Beach, Puerto Galera, Mindoro, Philippines

1116-39783 - Diver outside of the dive site called First Cathedral off the island of Lanai, Hawaii, United States of America

1116-39782 - Diver inside a cavern known as First Cathedral off the island of Lanai, Hawaii, United States of America

1116-39994 - Diver and a Commerson's frogfish (Antennarius commersoni) perched on a tube sponge off Apo Island, Philippines

1116-39966 - A commercial whale shark encounter with a feeder above on a canoe and a Whale Shark (Rhiniodon typus) below. This is the world's largest species of fish, Oslob, Philippines

1116-40004 - A diver (MR) shines her light into a crevice opening off Kaiwe Point on the Kona coast, Island of Hawaii, Hawaii, United States of America

1116-40006 - A photographer lines up with his smart phone in a housing on this Green sea turtle (Chelonia mydas) off the coast of Maui, Hawaii, United States of America

1116-39997 - Diver and schooling Yellowfin goatfish (Mulloidichthys vanicolensis), Yap, Micronesia

1116-39999 - Diver viewing a female Broadclub cuttlefish (Sepia latimanus) pushing an egg into the finger coral where it will hatch in four to six weeks, Philippines

1116-39995 - Diver and a Spotted porcupinefish (Diodon hystrix), Hawaii, United States of America

1116-39993 - Diver and a school of Dusky batfish (Platax pinnatus) at the entrance to a cavern with alcyonarian coral off the island of Gato, Bohol Sea, Philippines

1116-39996 - The silhouette of a diver in front of the sun, from below looking up at the surface, Yap, Micronesia

1116-40088 - Male diver with sun over ocean surface, Island of Hawaii, Hawaii, United States of America

1178-21723 - Underwater shot of boy swimming, Utah, United States

1178-21722 - Underwater shot of boy swimming, Utah, United States

1113-81311 - Scuba diver diving on Umbria shipwreck, Sudan, Africa, Red Sea, Wingate Reef

1113-81306 - Scuba diver and Car wreck near Blue Belt shipwreck, Sudan, Africa, Red Sea

1113-81312 - Scuba diver diving on Umbria shipwreck, Sudan, Africa, Red Sea, Wingate Reef

1113-81309 - Scuba diver and Truck wreck in Blue Belt shipwreck, Sudan, Africa, Red Sea

857-58669 - The Underworld - Photographs from caves all over the world

981-82 - Cameraman Michael Pitts on the wreck of the ''Blue Plunder'' Bahamas.

981-73 - Wreck of the ''Blue Plunder''- Bahamas

981-87 - Cameraman michael Pitts filming on the wreck of the 'Blue Plunder' - Bahamas

981-84 - Camera equipment on the wreck of the 'Blue Plunder'. Bahamas.

981-83 - Michael pitts with underwater time lapse system on the wreck of the 'Blue Plunder'. Bahamas.

981-76 - Cameraman Michael Pitts on the wreck of the ''Blue Plunder'' Bahamas.

981-88 - Neil Lucas with underwater time lapse system on the wreck of the 'Blue Plunder'. Bahamas.

981-78 - Neil Lucas with underwater time lapse system on the wreck of the 'Blue Plunder'. Bahamas.

981-77 - Neil Lucas with underwater time lapse system on the wreck of the 'Blue Plunder'. Bahamas.

934-205 - Gillieume Nery world record holder at the Oslo Ice Challenge 2009. Oslo, Norway

1067-36 - Freediver and WWII plane wreck. Yap, Federated States of Micronesia, Pacific Ocean. More info: This is the tail of a Japanese bomber shot down over Yap during the summer of 1944 by U.S. planes.

934-206 - Gillieume Nery world record holder at the Oslo Ice Challenge 2009. Oslo, Norway