| Answer | Crossword Clue |
|---|---|
| crosscurrent | A current in a river or sea that flows across another |
| backwater | water turned back in its course by an obstruction, or an opposing current, as in a river channel, or across a river bar |
| backwaters | BACKWATER, water turned back in its course by an obstruction, or an opposing current, as in a river channel, or across a river bar |
| whirlpool | a circular current in a river or sea, produced by opposing tides, winds or currents |
| whirlpools | WHIRLPOOL, a circular current in a river or sea, produced by opposing tides, winds or currents |
| upstream | Moving or situated in the opposite direction from that in which a stream or river flows; nearer to the source |
