nose dive, plunge, plunk, honkytonk, duck, crash dive, take a dip, swan-dive, swim, dunk, more...

surface

scubdiving, free diving, deep sediving, wreck diving, cave diving, night diving, ice diving, technical diving, more...

first, steep, deepest, shallow, high, longest, vertical, last, second, sudden, tank

sloppy hangout,   to dash,   fly down,   swoop down,   swim in,   go in head first,   seedy bar,   bar of ill repute,   far from swanky,   low-down joint