Jeff Wilson / View through the porthole of science teams and Frozen Planet film crew working on the sea ice in the Bering Sea, Alaska, USA, March 2008. The film crew were in search of Spectacled eider ducks, temper...
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Nick Garbutt / Black-browed albatross (Thalassarche melanophris) in flight over South Atlantic, viewed through ship's window. South Georgia.
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Nick Garbutt / Black-browed albatross (Thalassarche melanophris) in flight over South Atlantic, viewed through ship's window. South Georgia.
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Olga Kamenskaya / Waves viewed through porthole, Lake Baikal, Pribaikalsky National Park, Siberia, Russia, September 2013.
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Olga Kamenskaya / Waves viewed through porthole, Lake Baikal, Pribaikalsky National Park, Siberia, Russia, September 2013. Property released.
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Alex Mustard / Diver seen through a porthole of the USS Kittiwake (US Military submarine rescue vessel) Photograph was taken shortly after the wreck was deliberately sunk as an attraction for scuba divers, Caribbea...
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Merryn Thomas / Open porthole aboard Bristol Pilot Cutter "Morwenna", with sign "Do not open at sea". Bristol Floating Harbour, UK. April 2009.
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Nick Upton / "Porthole" window carved through granite rocks by wind, weather and sea erosion. Campomoro Point, near Propriano, Corsica, France, June 2010.
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Nick Upton / "Porthole" window carved through granite rocks by wind, weather and sea erosion. Campomoro Point, near Propriano, Corsica, France, June 2010.
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Roy Mangersnes / The first sight of South Georgia from boat window, Southern Ocean, Antarctica. November
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Jan Vermeer / View through a porthole of the Professor Molchanov, Antarctica
