bathyscaphe, astronaut, spacewoman, scuba diver, aeronaut, extravehicular, bathysphere, sailer, moonwalker, surfman, expedition, aqualung, adventurer, frogman, diver, space station, astronautical, submersible, underwater, bathyscaph, circumnavigator, spelunker, aviator, celestial navigation, antarctic, tereshkova, valentina tereshkova, boatswain, squalus, scuba dive, fridtjof nansen, fighter pilot, thor heyerdahl, aquarist, remus, wernher von braun, submariner, skylab, ufologist, crewmate, cosmonaut, nereus, spacesuit, submarine, sailor, oarfish, bosun, oceanography, voyaging, taikonaut, exobiology, spaceship, erwin schrodinger, scuba diving, john hanning speke, bioacoustics, rickover, ichthyologist, oceanographers, shallop, chelyuskin, hydrobiology, hyman rickover, oceanology, gastropod, spitzbergen, minesweeping, balsa raft, interplanetary, shipmate, destroyer escort, seaman, georges cuvier, robert peary, spacefaring, caravel, louis bleriot, outer space, oarswoman, rocketeer, atlantic bottlenose dolphin, norbert wiener, aeronautical engineer, minelayer, circumlunar, spacemen, argonauts, spaceflight, balloonist, mermen, ltjg, moray eel, vitus bering, nunatak, caver, engineman, decompression chamber, explorer, zoologist, rhincodon typus, snailfish, pearl diver

bather, natator, swimmer

skin-diver