Ingo Arndt / Antarctic Fur Seal (Arctocephalus gazella) in old Whaling Station, South Georgia, February

Franco Banfi / Trumpetfish (Aulostomus maculatus) on wreck, Santa Lucia, Camaguey, Cuba, Caribbean Sea, Atlantic Ocean

Alex Mustard / Reef octopus (Octopus cyanea) portrait near wreck. Gubal Island, Egypt. Red Sea.

Doug Perrine / Barjacks (Caranx ruber), Yellowtail snapper (Ocyurus chrysurus), and Sergeant major damselfish (Abudefduf saxatilis) swimming around wreck of bow gun on C-58 shipwreck off Puerto Morelos, near Cancun,...

Doug Perrine / Giant squirrelfish (Sargocentron spiniferum) at cleaning station in the cockpit of wreck of Panorama Air Tour Beech H18S that crashed in 1983 after take-off from Keahole airport, Kona, Hawaii.

Alex Mustard / World War II British motorbikes (Norton 16H) stacked up on the back of truck in the hold of wreck of HMS Thistlegorm, with soldierfish (Myripristis murdjan) swimming above. Sha'ab Ali, Sinai, Egypt. R...

Alex Mustard / World War II British motorbikes (Norton 16H) stacked up on the back of truck in the hold of wreck of HMS Thistlegorm, with Soldierfish (Myripristis murdjan) swimming above. Sha'ab Ali, Sinai, Egypt. R...

Michael Pitts / British Admiralty anchor - mid 1750's - possibly from the wreck of HMS Colossus - wrecked 1798. St Mary's Roads. Isles of Scilly. England, UK, August 2013.

Michael Pitts,Michael Pitts / DC-3 Aircraft wreck. Drug running aircraft that crashed in shallow water. Normans Cay, Exhumas, Bahamas. May 2005

Franco Banfi,Franco Banfi / Anchor on Wreck Vassilios T, Vis Island, Croatia, Adriatic Sea, Mediterranean

Franco Banfi / Scuba diver and yellow sponges (Aplysina cavernicola) on Brioni Steamship wreck, Vis Island, Croatia, Adriatic Sea, Mediterranean. Model released.

Michael Pitts,Michael Pitts / Engine room ventilator shafts of oil tanker 'Seiko Maru'. Sunk in Chuuk Lagoon 17/18th February 1944, Chuuk Lagoon, Pacific