Colin Monteath / Humpback Whale (Megaptera novaeangliae) observed by tourists in a zodiac boat near Melchoir Island, Antarctic Peninsula, Antarctica

Konrad Wothe / Tourists on Russian icebreaker breaking through pack ice, Antarctica

Mitsuaki Iwago / Cruise ship in storm, Antarctica

Martha Holmes / Producer Martha Holmes in Royal Navy helicopter. Antarctic Peninsula. February 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Interior of Royal Navy helicopter showing pilots. Antarctic Peninsula. February 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Royal Navy helicopter (mounted with Gyron) parked at Rothera, British Antarctic Survey base. Antarctic Peninsula. February 2008. Taken on location for BBC tv series 'Life'

Hiroya Minakuchi / Humpback Whale (Megaptera novaeangliae) surfacing near zodiac full of tourists, Antarctic Peninsula, Antarctica

Norbert Wu / Humpback Whale (Megaptera novaeangliae) diving near coast with tourists watching, Antarctic Peninsula, Antarctica

Colin Monteath / Tourists sea kayaking near Enterprise Island, Gerlache Strait, Antarctic Peninsula, Antarctica

Kathryn Jeffs / Dr Robert (Bob) Pitman, from US National Marine Fisheries Service, scientific advisor, relaxing on board the 'Golden Fleece' prior to searching for whales, Antarctic Peninsula, Antarctica, January 200...

Kathryn Jeffs / Dr Robert (Bob) Pitman, from US National Marine Fisheries Service, scientific advisor, relaxing on board the 'Golden Fleece' prior to searching for whales, Antarctic Peninsula, Antarctica, January 200...

Kathryn Jeffs / Dr Robert (Bob) Pitman, from US National Marine Fisheries Service, scientific advisor, relaxing on board the 'Golden Fleece' prior to searching for whales, Antarctic Peninsula, Antarctica, January 200...

Kathryn Jeffs / Dr Robert (Bob) Pitman, from US National Marine Fisheries Service, scientific advisor, relaxing on board the 'Golden Fleece' prior to searching for whales, Antarctic Peninsula, Antarctica, January 200...

Kathryn Jeffs / Dr Robert (Bob) Pitman, from US National Marine Fisheries Service, scientific advisor, relaxing on board The Golden Fleece prior to searching for whales, Antarctic Peninsula, Antarctica, January 2009,...

Colin Monteath / Climbers roped for glacier travel in case of crevasses, Mount Don Roberts, Lemaire Island, Paradise Bay behind, Antarctic Peninsula, Antarctica

Colin Monteath / Woman climber ice climbing on grounded iceberg with cruise ship passengers looking on, Pleneau Island, Antarctic Peninsula, Antarctica

Colin Monteath / Climbers descend Jabet Peak in blizzard above Port Lockroy, Wiencke Island, Antarctic Peninsula, Antarctica

Colin Monteath / Climbers roped for glacier travel during descent from Mount Don Roberts above Paradise Bay, Antarctic Peninsula, Antarctica

Colin Monteath / Kayakers paddling beneath Mount Scott at entrance to Lemaire Channel near Petermann Island, Antarctic Peninsula, Antarctica

Colin Monteath / Kayakers paddling beneath Mount Scott at entrance to Lemaire Channel near Petermann Island, Antarctic Peninsula, Antarctica

Colin Monteath / Climbers look down on kayakers and tourists in zodiacs, Enterprise Island, Gerlache Strait, Antarctic Peninsula, Antarctica

Flip Nicklin / Tourists checking out iceberg from inflatable boat from the Endeavour cruise ship, Antarctica

Flip Nicklin / Adelie Penguin (Pygoscelis adeliae) group with ship in the background, Antarctic Peninsula, Antarctica

Suzi Eszterhas / Zodiac at face of glacier, Neko Harbor, Antarctica Peninsula, Antarctica

Ingo Arndt / Emperor Penguin (Aptenodytes forsteri) group visiting the icebreaker Polarstern, Weddell Sea, Antarctica

Colin Monteath / Climbers cross open crevasses on Fortuna Glacier retracing Sir Ernest Shackleton's epic crossing of South Georgia in 1916

Colin Monteath / Tourists cruise past iceberg, Dumont d'Urville, Terre Adelie Land, east Antarctica

Colin Monteath / Man standing on a rock overlooking the Olympus Range, dry valleys, Antarctica

Colin Monteath / Man standing on a rock overlooking the Olympus Range, dry valleys, Antarctica

Colin Monteath / Man standing on a rock overlooking the Olympus Range, dry valleys, Antarctica

Colin Monteath / Climber above Webb Glacier, dry valleys, Transantarctic Mountains, Antarctica

Flip de Nooyer / Tourists viewing cemetery at Grytviken, an abandoned whaling station, South Georgia Island

Flip de Nooyer / King Penguin (Aptenodytes patagonicus) colony with tourists coming ashore in zodiac, St Andrews Bay, South Georgia Island

Flip de Nooyer / Two tourists view Humpback Whale (Megaptera novaeangliae) skeleton at abandoned whaling station, Port Lockroy, Wiencke Island

Colin Monteath / Climber in severe blizzard attempting to cross Ernest Shackleton's route, South Georgia Island

Colin Monteath / Tourist standing on the Fortuna Saddle views the derelict Norwegian Stromness whaling station, South Georgia Island

Colin Monteath / Tourist photographing icebergs and bergy bits on Brown Bluff Beach near Hope Bay, Antarctic Sound, Antarctica

Colin Monteath / Climbers in severe blizzard attempting to cross Ernest Shackleton's route, South Georgia Island

Colin Monteath / Tourists viewing large tabular icebergs from the deck of a boat, Southern Ocean, Antarctica

Colin Monteath / Tourists viewing large tabular icebergs from the deck of a boat, Southern Ocean, Antarctica

Flip de Nooyer / Sailboat seen through sea arch in iceberg, Gerlache Strait, Antarctica

Colin Monteath / King Penguin (Aptenodytes patagonicus) group and tourist, Bay of Isles, South Georgia Island

Colin Monteath / Climber on the summit of Mt Shinn after the first ascent of the east ridge, Ellsworth Mountains, Antarctica

Colin Monteath / Mountain climber approaching summit of Vinson Massif, the highest peak in Antarctica, Ellsworth Mountains, Antarctica

Colin Monteath / Humpback Whale (Megaptera novaeangliae) observed by tourists in zodiac, Pleneau Island, Antarctica

Colin Monteath / Adelie Penguin (Pygoscelis adeliae) investigating a zodiac, Murray Monolith, East Antarctica

Colin Monteath / Adelie Penguin (Pygoscelis adeliae) group observed by tourist, Petermann Island, Antarctic Peninsula, Antarctica

Colin Monteath / Chinstrap Penguin (Pygoscelis antarctica) group observed by tourists, Baily Head, Deception Island, South Shetland Islands, Antarctica Peninsula, Antarctica

Colin Monteath / Climbers on summit ridge of Mt Scott after climbing from sea level, Antarctic Peninsula, Antarctica

Colin Monteath / Wave breaking over the bow of a boat during a storm in the Ross Sea, Antarctica

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group on ice floe being passed by an Icebreaker, Possession Island, Ross Sea, Antarctica

Norbert Wu / Sea ice lead, sea ice splits to reveal long leads in summer, opening passages for marine life to travel through, McMurdo Sound, Antarctica

Norbert Wu / Sea ice lead, sea ice splits to reveal long leads in summer, opening passages for marine life to travel through, McMurdo Sound, Antarctica

Mitsuaki Iwago / Tourists in an inflatable zodiac boat approaching an iceberg, Antarctica

Norbert Wu / Sea ice splits to reveal long leads in summer, opening passages for marine life to travel, McMurdo Sound, Antarctica

Tui De Roy / Chinstrap Penguin (Pygoscelis antarctica) inspecting tourist, Baily Head, Deception Island, South Shetland Islands, Antarctica

Tui De Roy / Tourists in frozen desert sheltered by Asgard Range, Taylor Dry Valley, Ross Sea, Antarctica

Tui De Roy / Tourists in frozen desert sheltered by Asgard Range, Taylor Dry Valley, Ross Sea, Antarctica

Mitsuaki Iwago / Traveler in icy landscape, Antarctica

Norbert Wu / Mountaineer at entrance to the Imax Crevasse, large dangerous crevasse requires ropes and guides, Antarctica

Norbert Wu / Passengers gather on the deck of the MV Amsterdam to view the stunning scenery of the Lemaire Channel, Palmer Station, Antarctic Peninsula, Antarctica

Colin Monteath / Climbers descend Peon Peak, Ronge Island, Antarctic Peninsula, Antarctica

Flip Nicklin / Chinstrap Penguin (Pygoscelis antarctica) group walking near cruise ship, Antarctica

Jan Vermeer / Tourist photographing ice of off the Russian icebreaker Kapitan Khlebnikov, Antarctica

Jan Vermeer / Tourists looking at ice formation, Antarctica

Konrad Wothe / Russian icebreaker tracking through leading edge of pack ice, Weddell Sea, Antarctica

Ingo Arndt / German icebreaker Polarstern, in frozen sea ice, Weddell Sea, Antarctica

Colin Monteath / Tourists cruise in inflatable boats, close to large iceberg arch, Enterprise Island, Antarctica Peninsula, Antarctica

Flip de Nooyer / Sailboat seen through sea arch in iceberg, Gerlache Strait, Antarctica

Flip de Nooyer / King Penguin (Aptenodytes patagonicus) colony and photographer, Antarctica

Flip de Nooyer / Chinstrap Penguin (Pygoscelis antarctica) colony with sailboat, Hannah Point, Livingston Island, South Shetlands Islands

Flip de Nooyer / Sailboat off abandoned whale station, Whaler's Bay, Deception Island, South Shetland Islands

Flip de Nooyer / Sailboat Meander in still waters off of South Georgia Island

Flip de Nooyer / Tourists in zodiacs tour icebergs, South Georgia Island

Flip de Nooyer / Snow-covered sailboat nearing Couverville Island, Gerlache Strait, Antarctica

Flip de Nooyer / Sailboat dwarfed by glacier, Lemaire Channel, Antarctica

Flip de Nooyer / Tourists relaxing on deck during sailboat cruise, Elsehul Bay, South Georgia Island

Flip de Nooyer / Sailboat seen through sea arch in iceberg, Gerlache Strait, Antarctica

Flip de Nooyer / Sailboat and glacier, Lemaire Channel, Antarctica

Flip de Nooyer / Sailboat in cove, South Georgia Island

Flip de Nooyer / Two tourists relaxing on the deck of sailboat Meander as it navigates through bergy bits, Lemaire Channel, Antarctica

Flip de Nooyer / Tourists viewing landscape from deck of cruise ship, Gerlache Strait, Antarctica

Flip de Nooyer / Tour boat passing close to icebergs, Gerlache Strait, Antarctica

Flip de Nooyer / Tourists on cruise ship waving to others in zodiac, Gerlache Strait, Antarctica

Flip de Nooyer / Sailboat navigating rough waters off of South Georgia Island

Flip de Nooyer / Sailboat approaching glacier, Lemaire Channel, Antarctica

Flip de Nooyer / Sailboat seen through sea arch in iceberg, Gerlache Strait, Antarctica

Flip de Nooyer / Sailboat seen through sea arch in iceberg, Gerlache Strait, Antarctica

Konrad Wothe / Ship with tourists in Lemaire Channel, Antarctica

Flip de Nooyer / Explorers riding through sea ice to land, Antarctica

Flip de Nooyer / Sailboat seen through sea arch in iceberg, Gerlache Strait, Antarctica

Norbert Wu / Sea ice lead, sea ice splits to reveal long leads in summer, opening passages for marine life to travel through, McMurdo Sound, Antarctica

Norbert Wu / Sea ice splits to reveal long leads in summer, opening passages for marine life to travel, McMurdo Sound, Antarctica

Norbert Wu / Coast Guard icebreaker cutting through sea ice, creates an ice channel that allows marine life to travel deeper into sea ice, McMurdo Sound, Antarctica