Australian lifeguards recently rescued swimmers caught in a dangerous riptide—without ever needing to get in the water http://on.natgeo.com/2Du82cX

Australian lifeguards recently rescued swimmers caught in a dangerous riptide—without ever needing to get in the water http://on.natgeo.com/2Du82cX 

https://twitter.com/NatGeoTravel/status/956315740545708034