Related by context. Frequent words. (Click for all words.) 63 ancient mariners 59 Marquesas Islands 59 voyaging 58 Lapita 58 Thor Heyerdahl 55 Hokule'a 55 plesiosaurs 54 French Frigate Shoals 53 celestial navigation 53 Marquesas 53 lava tubes 53 prehistoric 53 explorers Meriwether Lewis 53 Ferdinand Magellan 53 godwits 52 Polynesians 52 HMS Beagle 52 seamount 52 Beringia 52 tidal pools 52 baleen whale 51 outrigger canoes 51 fiords 51 ocean 51 intertidal 51 classical antiquity 51 sea serpent 51 reef 50 Malay Archipelago 50 hydrothermal vent 50 Roald Amundsen 50 intrepid explorers 50 voyagers 50 marine invertebrates 50 marine reptiles 50 longboats 50 Galápagos Islands 50 cassowary 50 undersea volcanoes 49 clipper ships 49 ancestors 49 basking sharks 49 seafaring 49 Galápagos 49 H. sapiens 49 ancients 49 ammonites 49 toothed whales 49 underwater caves 49 mosasaur 49 megafauna 49 skink 49 Weddell Sea 49 islands 49 coral formations 49 Heyerdahl 49 Ernest Shackleton 48 underwater volcanoes 48 sea 48 Drake Passage 48 ancient Mayans 48 Jurassic Period 48 Haystack Rock 48 Galapagos islands 48 damselfish 48 tyrannosaurs 48 Farne Islands 48 shipwrecks 48 coelacanth 48 Mesolithic 48 Abel Tasman 48 dugout canoe 48 Spitzbergen 48 ancient 48 Pacific Ocean 48 prehistoric creatures 48 Yucatán Peninsula 47 Anacapa Island 47 mudflat 47 platypuses 47 shipwrecked 47 dreamtime 47 Hawaiian Islands 47 orca whale 47 millenniums 47 migratory shorebirds 47 Pilgrim Fathers 47 Monhegan Island 47 leatherback turtle 47 schooner 47 erupting volcanoes 47 petroglyph 47 giant tortoises 47 gannet 47 giant tortoise 47 beaked whale 47 lightship 47 Migaloo 47 coral reef 47 landforms 47 clifftops