Michael Pitts / Mike de Gruy, underwater camerman, in Remora submersible, Mediterranean

Jeff Rotman / DeepSee diving submersible at water's surface, being towed, Cocos Island, Costa Rica, Pacific Ocean. Property released Model released.

Jeff Rotman / DeepSee diving submersible, Cocos Island, Costa Rica, Pacific Ocean Property released

Richard Herrmann / Research submersible submerging to explore hot vents, Danzante Island, Baja California, Mexico

Norbert Wu / Perry submersible used to bring tourists to deep sea, 1,000 meters depth, Grand Cayman, Caribbean

Solvin Zankl / GEOMAR / Scientists looking at cold water coral samples taken with submersible JAGO at the Sula Reef in Norway. Trondheimfjord, North Atlantic Ocean, Norway, September 2011, editorial use only.. Photo taken in...

Solvin Zankl / GEOMAR / Jurgen Schauer pilot of the submersible JAGO on a dive with corals visible through the viewport. Atlantic ocean, Norway, September 2011, editorial use only. Photo taken in cooperation with GEOMAR cold...

Solvin Zankl / GEOMAR / Submersible JAGO surfacing with deepsea coral samples from Sula Reef off the coast of Norway. Chief Scientist Dr. Armi (left) from GEOMAR Kiel and pilot Jürgen Schuaer (right) September 2011, editori...

Solvin Zankl / GEOMAR / View of Coral Reef (Lophelia pertusa) with prominent gorgonian coral colonies (Paragorgia arborea) taken from German research submersible JAGO, Trondheimfjord, Norway, Atlantic Ocean, Norway . Photo...

Solvin Zankl / GEOMAR / German reserach submersible JAGO on surface ready to dive at the Sula Reef off the coast of Norway, September 2011, editorial use only. Photo taken in cooperation with GEOMAR coldwater coral research...

Solvin Zankl / GEOMAR / Submersible JAGO, preparing to dive, at the Sula Reef off the coast of Norway, September 2011, editorial use only. Photo taken in cooperation with GEOMAR coldwater coral research project

Solvin Zankl / GEOMAR / Barbara Lich editor from GEOlino and Solvin Zankl inside the submersible JAGO. Solvin Zankl is photographing cold water corals on board RV POSEIDON for three weeks, going down to 200m to visit the Sul...