Jeff Rotman / Free diver swimming in shallow water over coral reef, Sinai, Egypt, Red Sea Model released Model released.

Jeff Rotman / Free diver coming up from dive to explore coral reef, Sinai, Egypt, Red Sea Model released Model released.

Jeff Rotman / Dolphin trainer interacting with Bottlenose Dolphin (Tursiops truncatus), Dolphin Reef, Eilat, Israel - Red Sea. Model released.

Doug Perrine / Grey reef shark group {Carcharhinus amblyrhynchos} Bikini Atoll, Micronesia, Pacific Ocean (Non-ex).

David Fleetham / Kawakiu Nui Beach on West End, Molokai, Hawaii. July 2017.

Laurent Geslin / Mauritius fody (Foudia rubra) with woman on beach in the background, Mauritius, July 2012.

Constantinos Petrinos / Female tourist sunbathing on beach, Cayo Coco, Ciego de Avila Province, Moron Municipality, Cuba, July 2008. Model released.

Pascal Kobeh / Woman swimming at the surface of a Jellyfish lake, a marine lake. Split level showing mangroves. Eil Malk island, Koror, Palau. Philippine Sea.

Pascal Kobeh / Woman swimming in a marine lake among thousands of Golden jellyfish (Mastigias papua etpisoni), subspecies of the spotted jellyfish living in the nearby lagoons. Eil Malk island, Koror, Palau. Philip...

Pascal Kobeh / Woman swimming in a marine lake among thousands of Golden jellyfish (Mastigias papua etpisoni), subspecies of the spotted jellyfish living in the nearby lagoons. Eil Malk island, Koror, Palau. Philip...

Pascal Kobeh / Woman swimming in a marine lake among thousands of Golden jellyfish (Mastigias papua etpisoni), subspecies of the spotted jellyfish living in the nearby lagoons. Eil Malk island, Koror, Palau. Philip...

Pascal Kobeh / Woman swimming in a marine lake among thousands of Golden jellyfish (Mastigias papua etpisoni), subspecies of the spotted jellyfish living in the nearby lagoons. Eil Malk island, Koror, Palau. Philip...

Pascal Kobeh / Woman swimming in a marine lake among thousands of Golden jellyfish (Mastigias papua etpisoni), subspecies of the spotted jellyfish living in the nearby lagoons. Eil Malk island, Koror, Palau. Philip...

Pascal Kobeh / Woman swimming in a marine lake among thousands of Golden jellyfish (Mastigias papua etpisoni), subspecies of the spotted jellyfish living in the nearby lagoons. Eil Malk island, Koror, Palau. Philip...

Billy Black / Girl in bikini sunbathing on board Lagoon 470 Sunsail charter catamaran "KooLau", anchored off the British Virgin Islands, January 2004. Model released.

Billy Black / Girl in bikini on board Lagoon 470 Sunsail charter catamaran "KooLau", anchored off the British Virgin Islands, January 2004. Model released.

Billy Black / Girl in bikini on board Lagoon 470 Sunsail charter catamaran "KooLau", anchored off the British Virgin Islands, January 2004. Model released.

Billy Black / Girl in bikini aboard Lagoon 470 Sunsail charter catamaran "KooLau", British Virgin Islands, January 2004. Model and property released.

Billy Black / Woman on the bow of a Sunsail Lagoon 410 anchored in the BVI. April 2006.

Billy Black / Girl in bikini on board Lagoon 470 Sunsail charter catamaran "KooLau", anchored off the British Virgin Islands, January 2004. Model released.

Billy Black / Couple helming a Sunsail Oceanis 523 in the BVI, March 2006. Model and property released.

Billy Black / Woman swimming underwater, Exumas, Bahamas. February 2007. Model released.

Billy Black / Woman helming a Sunsail Oceanis 523 in the BVI, March 2006. Model and property released.

Tim Fitzharris / Coconut Palm (Cocos nucifera) trees at sunset at Bikini Beach, Panglao Island, Philippines

Tim Fitzharris / Coconut Palm (Cocos nucifera) trees, Bikini Beach, Panglao Island, Philippines

Mark Brownlow / Producer Mark Brownlow in metal chain dive suit, watching Grey reef sharks from boat, Bikini Atoll, Marshall Islands, August 2003. BBC Roboshark programme

Doug Perrine / Papuan jellyfish {Mastigias papua} Bikini atoll, Marshall Is, Micronesia

Doug Perrine / School of Grey reef sharks {Carcharhinus amblyrhychos} Bikini Atoll, Micronesia (Non-ex).

Doug Perrine / School of Grey reef sharks {Carcharhinus amblyrhychos} Bikini Atoll, Micronesia (Non-ex).

Doug Perrine / Grey reef sharks {Carcharhinus amblyrhynchos} Bikini Atoll, Micronesia (Non-ex).

Doug Perrine / School of Grey reef sharks {Carcharhinus amblyrhychos} Bikini Atoll, Micronesia (Non-ex).

Doug Perrine / School of Grey reef sharks {Carcharhinus amblyrhychos} Bikini Atoll, Micronesia (Non-ex).

David Fleetham / Young girl in bikini floating in shallow water just off an idylic sand island in Fiji. Model released.

Tim Fitzharris / Sunrise at Bikini Beach, Panglao Island, Bohol Island, Philippines

Onne van der Wal / Speed boat underway off Newport, with a bikini-clad woman relaxing in the back. Rhode Island, UK.

Onne van der Wal / Speed boat underway off Newport, with a bikini-clad woman relaxing in the back. Rhode Island, UK.

Peter Kragh / Roboshark amongst Grey reef sharks at surface {Carcharhinus amblyrhynchus} Bikini Atoll

Mark Brownlow / Roboshark amongst Grey reef sharks {Carcharhinus amblyrhynchus} Bikini Atoll

David Fleetham / Two women snorkelling over a reef, Hawaii, Pacific Ocean. Model released.

David Fleetham / Girl on stand-up paddle board, Kapalua Bay, Maui, Hawaii. Pacific Ocean. Model released.

Erik Russell / Woman in bikini sunbathing on the bow of motoryacht "Gladius" steaming off the Cote d'Azure, France, August 2007