bob, maneuver, kick, snake, dive, descend, swim, surface, flip, decompress, plunge, spit, hyperventilate, ascend, gear up, scuba dive, snorkel, spelunk, clear (face mask/snorkel), lower oneself, defog (one's mask), hold one's breath, blow out, suck (air), skin-dive, recharge, charge (an air tank)

slice, dive, swim, wash over, come about, surf, take out, sail, portage, put in, keel, cruise, canoe, kayak, paddle, jet ski, pedal boat, wind surf, skim board, skurf, dock, flip (a kayak), roll (a kayak)

stroke, sweep, catch, release, recover, catch a crab, set the boat, portage, row, skull, cox, cross (the finish line)

tow, snap, wipe out, free-fall, surf, suit up, shoot down (the face of a wave), ride (a wave), paddle (a board)

propel, drag, stroke, position, rotate, kick, dive, float, dunk, swim, crawl, splash, jump into, breathe, streamline, reach, extend, relay, drown, tread (water), push off, paddle, flutter kick, roll (head to the side to breathe), flipturn, maintain (momentum), bellyflop, dog paddle, immerse oneself (in a pool), plunge (into the cove), grab (the start block), drill dig into, over-rotate, scissor-kick