rip current

Before you play in the ocean, watch the break water and look for flag warnings on the beach. Where the breakwater overlaps on the shore is a rip tide. If you do get caught in a rip tide, allow yourself to go beyond the wave, then swim parallel to the shore and let the waves bring you to shore (body surf in).

Rip currents, also known as rip tides,can be recognized by unusually calm waters. When a rip current takes control of an unsuspecting swimmer,there is no chance for the swimmer to escape. But a rip current that takes place under the water, an undertow, is a different story. To survive an undertow first cry for help, then let the current take you. When it lets up, swim out of its grasp and make your way back to the shore.

I am not sure what that is to say for sure. I just have no clue, sorry. I will look into it though. Thanks.