Michael Hutchinson / Cruise ship and passengers in front of snow covered mountains, Paradise Bay, Antarctica, January.
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Jeff Vanuga / Tourists lining the deck ship Ushuaia in the Lemaire Channel clogged with sea ice, Antarctica.
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Enrique Lopez-Tapia / A wild Cape fur seal (Arctocephalus pusillus) on deck of wildlife watching cruise boat in search of fish, Walbis Bay Lagoon, Namibia, September 2013.
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Enrique Lopez-Tapia / A wild Cape fur seal (Arctocephalus pusillus) on deck of wildlife watching cruise boat in search of fish, Walbis Bay Lagoon, Namibia, September 2013.
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Loic Poidevin / Geirangerfjord with liners, Stranda municipality, Sunnylvsfjorden UNESCO World Heritage Site, Norway, June 2010.
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Loic Poidevin / Geirangerfjord with cruise ships , Stranda municipality, Sunnylvsfjorden UNESCO World Heritage Site, Norway, June 2010.
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Konrad Wothe / Tourist boat and Mauriti Palm Trees (Mauritia flexuosa) at Sandoval Lake, Tambopata National Reserve, Peru, South America.
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Adrian Davies / Cliffs with Gannet (Morus bassanus) colony and tourist boat of birdwatchers, at Hermaness, Shetland, Scotland, May 2013.
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Christophe Courteau / Landscape view of the Bockfjorden from a sailing boat, part of the Woodfjorden, Spitzbergen, Svalbard, June 2012. Property released.
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Christophe Courteau / View from the top of a mast of a sailing boat in pack ice in Woodfjord, Svalbard, Norway, June, 2012.
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Christophe Courteau / View from a sailing boat of pack ice in Woodfjord, Svalbard, Norway, June, 2012.
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Michele Westmorland / Tourists viewing Spotted eagle rays (Aetobatus narinar) from a inflatable. Galapagos Islands, January 2012. Model released.
