Wiktionary
rip currents
n. (rip current English)
Usage examples of "rip currents".
Too often its shores are whipped by rip currents extremely dangerous to all but the most wary swimmers.
Johnny had tried to explain the local rip currents that caused it, but Malin hadn't understood and was pretty sure Johnny didn't, either.
The river is boiling with rip currents and whirlpools waiting to drag you down.