290K views · 1.7K reactions | Rip currents are silent, but powerful channels of water, pulling unsuspecting swimmers out to sea. Understanding how to spot them—and what to do if you get caught—can mean the difference between a fun day at the beach and a life-threatening situation. Learn more about the causes of rip currents and how to spot them at: https://on.natgeo.com/41dkpal Host: Halley Brown | National Geographic | Facebook