Konrad Wothe / Wooden hut of the polar explorer Sir Wally Herbert which was dismantled and transported to the Falkland island Museum, Port Stanley, Falkland Islands, South Atlantic Ocean. No release available.

Juergen Freund / Scientists on the Undersea Explorer research vessel testing a coconut rattle to attract sharks. Queensland, Australia. John Rumney.

Fred Bavendam / Diver exploring the Liberty shipwreck, Bali's most popular dive site, Tulamben, Bali, Indonesia

Ashley Cooper / Grave of Sir Ernest Shackleton at Grytviken cemetary on South Georgia. February 2014

Ashley Cooper / Folded rocks, showing the pressures created by tectonic drift, in Stromness Bay, South Georgia, in the Southern Ocean. February 2014

Ashley Cooper / Passengers on an expedition cruise to Antarctica following part of Shakleton's famous walk across South Georgia. The group are walking from Fortuna Bay to Stromness. South Georgia, Antarctica. Februar...

Ashley Cooper / Twenty ton ice explorer truck next to a Moulin, or sink hole for meltwater. Iceland, September 2010.

Ashley Cooper / The Eqip sermia glacier that is receeding rapidly due to global warming on the west coast of Greenland.

Ashley Cooper / Eqip Sermia on the west Greenland coast, showing the lateral moraine on the side of the glacier where it has receeded due to global warming. Greenland, July 2008.

Ashley Cooper / Musk Ox fleece on a bed at Camp Victor, Eqip Sermia, Greenland, July 2008. Camp Victor was the base for the French led expedition that explored the inland ice sheet in 1948 led by the French explorer...

David Fleetham / "Stella Maris Explorer" at anchor off Quiminatin Island, part of the Cuyo Archipelago just north of the Sulu Sea in the Philippines.

David Fleetham / "Stella Maris Explorer" at anchor off Quiminatin Island, part of the Cuyo Archipelago just north of the Sulu Sea in the Philippines.

Juergen Freund / The Gregory Tree, an Australian baobab / Boab tree (Adansonia gregorii) which marks the site of the explorer AC Gregory's camp site 1855-56, Kimberley, Western Australia.

Juergen Freund / The Gregory Tree, an Australian baobab / Boab tree (Adansonia gregorii) which marks the site of the explorer AC Gregory's camp site 1855-56, Kimberley, Western Australia.

Ingo Arndt / Grave of Sir Ernest Henry Shackleton, South Georgia Island, February 2011

David Noton / Explorer in Ice cave in Porsmorck, Iceland, February 2016.

Pal Hermansen / Statue of Leiv Eiriksson, said to be the first European in North America, even before Christopher Columbus. Quassiarsuk / Brattahlid, southern Greenland, July 2016.

Paul D Stewart / Portrait of Pierre Belon (1517-1564) renaissance French explorer, naturalist, writer and diplomat. He worked on a range of topics including ichthyology, ornithology, botany, comparative anatomy, archi...

Paul D Stewart / Portrait of Pierre Belon (1517-1564) renaissance French explorer, naturalist, writer and diplomat. He worked on a range of topics including ichthyology, ornithology, botany, comparative anatomy, archi...

Paul D Stewart / Portrait of William Dampier, naturalist, explorer and buccaneer (August 1651 - March 1715). A posthumous 1787 Copperplate engraving by Charles Sherwin after the 1698 painting by T. Murray.

Franco Banfi / Nautilus Explorer, luxury liveaboard boat, Vancouver Island, British Columbia, Canada, Pacific Ocean.

Franco Banfi / Diving boat of the Nautilus Explorer, luxury liveaboard boat, Vancouver Island, British Columbia, Canada, Pacific Ocean

Tim Laman / Gentoo penguin (Pygoscelis papua) colony in front of expedition ship 'National Geographic Explorer' at Cuverville Island, Ererra Channel, Gerlache Strait vicinity, Antarctica.

Tim Laman / Zodiac boat carrying tourists back to the expedition ship 'National Geographic Explorer' over a rough sea in the bay of Half Moon Island, South Shetland Islands group, Antarctica, February 2011.

Tim Laman / National Geographic Explorer walking along path on New Island, Falkland Islands, March 2011.

Tim Laman / Expedition ship 'National Geographic Explorer' at Neko Harbor with Gentoo penguins (Pygoscelis papua) on shore, Andvord Bay, Antarctica, February 2011.

Konrad Wothe / Wooden hut of the polar explorer Sir Wally Herbert which was dismantled and transported to the Falkland island Museum, Port Stanley, Falkland Islands, South Atlantic Ocean.

Konrad Wothe / Wooden hut of the polar explorer Sir Wally Herbert which was dismantled and transported to the Falkland island Museum, Port Stanley, Falkland Islands, South Atlantic Ocean.

David Woodfall / Gower explorer bus in Rhosilli, scheme to reduce effect of traffic congestion and pollution in Area of Natural Beauty, South Wales, UK 2009

Sue Flood / Grave of John Adams, Pitcairn Island, Pitcairn Islands, South Pacific 2010

Bryan and Cherry Alexander / The bust of Adrien de Gerlache, Belgian Polar Explorer, on the seafront at Ushuaia. Argentina, February 2009.

Bryan and Cherry Alexander / Plaque below the bust of polar explorer Adrien de Gerlache, on the seafront at Ushuaia, Argentina, 2009.

Bryan and Cherry Alexander / Explorer Sir Ernest Shackleton's grave at Grytviken. South Georgia, Sub Antarctica.

Bryan and Cherry Alexander / Monument erected to US explorer Robert Peary at Cape York, Northwest Greenland, 1991. Editorial use only.

Kevin Schafer / National Geographic Explorer ship approaches waterfall, Austfonna Glacier, Nordaustlandet, Svalbard, Norway

Juergen Freund / 13 captured Chambered nautilus {Nautilus pompilius} in an ice box on board 'Undersea Explorer'. They will be measured, recorded and released in the reef. 2007

Juergen Freund / Guests help out 'Undersea Explorer' marine biologist Qamar to engrave, photograph and measure caught Nautilus for research, Queensland, Australia, 2007

Juergen Freund / Guests help out 'Undersea Explorer' marine biologist Qamar to engrave, photograph and measure caught Nautilus for research, Queensland, Australia, 2007

Juergen Freund / Shell of a caught Chambered nautilus {Nautilus pompilius} being engraved with a number for research onboard the 'Undersea Explorer', Queensland, Australia, 2007

Juergen Freund / Researcher Jaap on board research boat 'Undersea Explorer' bringing up two caught Chambered nautilus {Nautilus pompilius} Queensland, Australia, 2007

Juergen Freund / Dr. Peter Ward observing Chambered nautilus {Nautilus pompilius} specimen with attached radio transmitter, onboard the 'Undersea Explorer' research boat, Queensland, Australia, 2007

Juergen Freund / Research / Diving boat 'Undersea Explorer' with guests and crew at the bow of the boat in Cod Hole, Great Barrier Reef, Queensland, Australia, 2007

Juergen Freund / Split level of research / diving boat 'Undersea Explorer' with free diver exploring the coral reef, Pixie Pinnacle, Great Barrier Reef, Queensland, Australia, 2007

Juergen Freund / Research / Diving boat 'Undersea Explorer's back dive deck with divers, Great Barrier Reef, Queensland, Australia, 2007

Warwick Sloss / Johnson Sea Link exploration submarine employed by NOAA Ocean Explorer, being loaded back on to its support vessel after a dive

Flip Nicklin / Grave of British explorer Ernest Shackleton, South Georgia Island

Flip Nicklin / Grave of British explorer Ernest Shackleton, South Georgia Island

Rick Tomlinson / Whalers cemetery at Grytviken, where Ernest Shackleton was buried in 1922. South Georgia, February 2007.

Rick Tomlinson / Ernest Shackleton's grave at the whalers cemetery, Grytviken, South Georgia, February 2007

Nick Turner / Tree and dry stone wall on Explorer Walk 12 in the Cotswolds, UK

Juergen Freund / Nautilus being measured upon the research vessel Undersea Explorer, Queensland, Australia

Juergen Freund / Nautilus onboard the Undersea Explorer research vessel with three scientists in the background, Queensland, Australia

Juergen Freund / Scientists engraving tracking numbers on nautilus onboard the research vessel Undersea Explorer. Queensland, Australia

Juergen Freund / Group of Nautilus onboard the Undersea Explorer research vessel, Queensland, Australia

Juergen Freund / Scientists on the Undersea Explorer research vessel testing a coconut rattle to attract sharks. Queensland, Australia

Juergen Freund / Scientists on the Undersea Explorer research vessel testing a coconut rattle to attract sharks. Queensland, Australia. John Rumney

Juergen Freund / Scientists on the Undersea Explorer research vessel with a Nautilus. Queensland, Australia

Juergen Freund / Dr Billy Sinclair engraves tracking number on a nautilus onboard the research vessel Undersea Explorer. Queensland, Australia

Juergen Freund / Undersea Explorer's crewwith grey reef shark (Carcharhinus amblyrhynchos) to collect tissue samples. North Horn, Queensland, Australia

Juergen Freund / Undersea Explorer's crew baiting grey reef sharks (Carcharhinus amblyrhynchos) to collect tissue samples. North Horn, Queensland, Australia

Colin Monteath / Castle Hill limestone boulders, walker explores boulders in winter, near Christchurch, New Zealand

Juergen Freund / Snorkler on tow line, behind 'Undersea Explorer' boat, watching Dwarf minke whale {Balaenoptera acutorostrata} Queensland, Australia

Juergen Freund / Dwarf minke whale {Balaenoptera acutorostrata} passing hydrophone of the boat 'Undersea Explorer' Great Barrier Reef, Queensland, Australia

Juergen Freund / Susan Sobtzik working on her days's research onboard the Undersea Explorer, Queensland, Australia, 2006

Juergen Freund / Researcher Susan Sobtzik hanging on a 'minke line' with video recorder, on board the boat 'Undersea Explorer' Queensland, Australia, 2006

Juergen Freund / Split level of Dwarf minke whale {Balaenoptera acutorostrata} and tourist whale watching boat 'Undersea Explorer' Queensland, Australia 2006

Fabio Liverani / Donini cave with explorer, Sardinia, Italy

Leo & Mandy Dickinson / Cliff Philipps climbing on the Brouillard 1970

Leo & Mandy Dickinson / Sir Chris Bonnington, British mountaineer 1993

Leo & Mandy Dickinson / Reinhold Messner after Everest ascent without oxygen, 1978

Colin Monteath / The grave of British explorer Ernest Shackleton, South Georgia Island

Tui De Roy / Ross Ice Shelf, described as, a vast, limitless expanse of white, by British explorer Robert F Scott, area the size of France, Ross Sea, Antarctica

Paul D Stewart / Portrait of Joseph Dalton Hooker, 19th century botanist and explorer.

Paul D Stewart / 1698 illustration of William Dampier, naturalist, explorer and buccaneer (August 1651 - March 1715). A posthumous 1787 Copperplate engraving by Charles Sherwin after the 1698 painting by T. Murray. On...

Paul D Stewart / Illustration of 'Beagle laid ashore, River Santa Cruz'. Copperplate engraving, art by Conrad Martens, engraved by T. Landseer. Published by H. Colburn 1838. Plate from 'The Narrative of the Surveying...

Paul D Stewart / Portrait of Friedrich Alexander von Humboldt (14th September 1769 - 6th May 1859), Lizars' Steel engraving c 1830 with hand colouring after the 1806 painting by Friedrich Weitsch. A German explorer an...

Paul D Stewart / Portrait of James Cook, Captain of HMS Barc Endeavour (b. 7th November 1728 - d. 14th February 1779); steel engraving by E. Scriven 1833 with later hand colouring, after the painting by N. Dance 1775/...

Paul D Stewart / Illustration of Sea Serpents from Gessner's 'Historia Animalium', volume 4, 1558. Later hand colouring. Gessner's accounts included creatures which exist, and creatures which we now know do not. There...

Paul D Stewart / Illustration of Sea Serpents from Gesner's 'Historia Animalium', volume 4, 1558. Later hand colouring. Italic marginalia by contemporary scholar. Gessner's accounts included creatures which exist, and...

Onne van der Wal / The gravestone of the famous Antarctic explorer, Sir Ernest Shackleton, in the cemetery at Grytviken, South Georgia.

Roberto Rinaldi / Deep explorer submarine, George Town, Grand Cayman, Cayman Islands.

Flip Nicklin / Grave of British explorer Ernest Shackleton, South Georgia Island

Flip de Nooyer / The grave of British explorer Ernest Shackleton, South Georgia Island

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

Jabruson / Grave of Carl Akeley early 20th-century explorer at Kabara Meadow Virunga NP Dem Rep Cong

Tom Vierus / Split level view of a coral nursery in shallow water run by Reef Explorer Fiji, a local NGO, near Votualalai, Coral Coast, Viti Levu, Fiji, Pacific Ocean. September, 2023.

Tom Vierus / Split level view of a coral nursery in shallow water run by Reef Explorer Fiji, a local NGO, near Votualalai, Coral Coast, Viti Levu, Fiji, Pacific Ocean. September, 2023.

Doug Allan / Inside Shackleton's Hut, Cape Royds, Ross Island, McMurdo Sound, Ross Sea, Antarctica.

Doug Allan / Inside Shackleton's Hut, Cape Royds, Ross Island, McMurdo Sound, Ross Sea, Antarctica.

Doug Allan / People visiting Shackleton's Hut, Cape Royds, Ross Island, McMurdo Sound, Ross Sea, Antarctica.

Doug Allan / People visiting Shackleton's Hut, Cape Royds, Ross Island, McMurdo Sound, Ross Sea, Antarctica.

Doug Allan / Abandoned dog kennels outside Shackleton's Hut, Cape Royds, Ross Island, McMurdo Sound, Ross Sea, Antarctica.

Doug Allan / Snow fills a corner of Scott's Antarctic Expedition hut, McMurdo Sound, Ross Island, Antarctica.

Luciano Candisani / Explorer in cave, Temimina Cave, Petar State Park, Brazil

Doug Gimesy / Environmental explorer Tim Jarvis on a glacier on Shakelton Gap, King Haakon Bay, South Georgia. November, 2018. Editorial use only.