Colin Monteath/ Hedgehog House / Kayakers paddling back to cruise ship Polar Pioneer, Lemaire Channel, Antarctic Peninsula, Antarctica

Mitsuaki Iwago / Cruise ship in storm, Antarctica

Colin Monteath/ Hedgehog House / Kayakers approaching arches in iceberg, Cierva Cove, Antarctic Peninsula, Antarctica

Colin Monteath/ Hedgehog House / Kayakers in brash ice, Cierva Cove, Antarctic Peninsula, Antarctica

Colin Monteath/ Hedgehog House / Kayakers paddling back to cruise ship Polar Pioneer, Lemaire Channel, Antarctic Peninsula, Antarctica

Colin Monteath/ Hedgehog House / Tourist ship Europa in heavy pack ice beneath Mount Scott, Penola Strait, Antarctic Peninsula, Antarctica

Colin Monteath/ Hedgehog House / Tourist ship Europa in heavy pack ice beneath Mount Scott, Penola Strait, Antarctic Peninsula, Antarctica

Colin Monteath/ Hedgehog House / Tourist ship Europa in heavy pack ice, Penola Strait, Antarctic Peninsula, Antarctica

Matthias Breiter / Kayaker, Paradise Bay, Antarctic Peninsula, Antarctica

Matthias Breiter / Kayaker, Paradise Bay, Antarctic Peninsula, Antarctica

Matthias Breiter / Gentoo Penguin (Pygoscelis papua) porpoising in front of zodiak with tourists, Neko Harbor, Antarctic Peninsula, Antarctica

Matthias Breiter / Humpback Whale (Megaptera novaeangliae) curious individual surfacing near tourists, Gerlache Strait, 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

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

Eric Phillips / Jon Muir and Eric Philips iced-up faces on trek to South Pole, Antarctica

Eric Phillips / Jon Muir iced-up face on trek to South Pole, Antarctica

Jim Henderson / Mountaineer carrying load across polished sea ice, Ross Ice Shelf, Antarctica

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

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

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 / Climber on summit ridge, new route on Mt Shinn, Ellsworth Mountains, Antarctica

Colin Monteath / Scientists and field assistants view Mt Discovery from the summit of Mt Erebus, Ross Island, Antarctica

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

Matthias Breiter / Giant iceberg and sailboat seen from the crow's nest, Gerlache Strait, Antarctic Peninsula, Antarctica

Matthias Breiter / Giant iceberg and sailboat seen from the crow's nest, Gerlache Strait, Antarctic Peninsula, Antarctica

Matthias Breiter / Leopard Seal (Hydrurga leptonyx) and kayakers, Paradise Bay, Antarctic Peninsula, Antarctica

Matthias Breiter / Leopard Seal (Hydrurga leptonyx) and kayakers, Paradise Bay, Antarctic Peninsula, Antarctica

Matthias Breiter / Leopard Seal (Hydrurga leptonyx) and kayaker, Paradise Bay, Antarctic Peninsula, 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

Jan Vermeer / The bow of the Russian icebreaker Kapitan Khlebnikov, Antarctica

Jan Vermeer / The bow of the Russian icebreaker Kapitan Khlebnikov, Antarctica

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