nouna current opposing other currents, producing violently disturbed water; esp., the strong, narrow flow of sea water that rushes seaward after incoming waves pile up on the shore
This photo shows an early morning riptide before the high tide came in to conceal it. Riptides, such as this, caused over 170 lifeguard rescues in one day, for swimmer fatigue. Momma always told us, to get out of the pull of a riptide, swim at an angle, lest it take us away. Riptides change the shape and form of the beach & stir things up a bit.
Sometimes, in life, when we move against the current, we carry more power and strength than we know.