Related by context. Frequent words. (Click for all words.) 68 expedition 66 polar expedition 58 Antarctic 57 Ernest Shackleton 56 polar explorer 56 Arctic explorer 56 Roald Amundsen 56 Antarctica 55 expeditions 54 Everest expedition 51 Sir Ernest Shackleton 50 Expedition 49 Antartica 48 HMS Beagle 48 voyage 47 McMurdo Sound 47 Weddell Sea 47 Hadow 46 adventurer 46 IPY 45 circumnavigation 45 explorers 45 Sir Ranulph Fiennes 44 Apa Sherpa 44 Resolute Bay 44 Qomolangma 44 Everest Expedition 44 McMurdo Station 44 Chilingarov 43 Punta Arenas Chile 43 mountaineer 43 whaling fleet 43 Sir Ranulph 42 climb Mount Everest 42 Amundsen 42 voyages 42 North Pole 42 Rothera 42 submarine 42 Ross Ice Shelf 42 Baffin Island 42 oceanographic 41 voyaging 41 Qinghai Tibet Plateau 41 International Space Station 41 icecap 41 Royal Geographical Society 41 Around Alone 41 ICESat 41 Amundsen Scott 40 Primal Quest 40 mountaineering 40 Edmund Hillary 40 whaling ship 40 Heyerdahl 40 submersibles 40 dogsled 40 Spitsbergen 40 polar 40 Krikalev 40 Sir Edmund 40 yachtsman 40 climb Everest 39 climbing Everest 39 Ellesmere Island 39 solo circumnavigation 39 sledges 39 Antarctic ice 39 Adventurer 39 Mt Everest 39 lunar surface 39 Polar Regions 39 Sherpa Tenzing Norgay 39 Soyuz rocket 39 Sir Edmund Hillary 39 mountaineers 39 Rowing Race 39 Manaslu 39 Antarctic Peninsula 39 interglacial period 38 Arctic 38 explorer 38 Ferdinand Magellan 38 whaling vessel 38 Pole 38 Kamchatka peninsula 38 Nanga Parbat 38 gas hydrates 38 ESA astronaut 38 Tristan da Cunha 38 Longyearbyen 38 orbiting laboratory 38 Mars rover 38 Mount Everest 38 Piers Sellers 38 glaciologist 38 Ushuaia Argentina 37 dugout canoe 37 Cho Oyu 37 yachtswoman 37 Andrea Doria