How to Spot a Rip Current [video]

Here's a good one on how to escape a rip. Beware of blindly swimming parallel, as you could be swimming against the rip as it turns back to the beach:

How to Escape a Rip NSW Ed | https://www.youtube.com/watch?v=Ug2TMPKGrvc

Here's a video of a rip that was very hard to spot (you can skip to halfway):

Dr Rip - Behind the Scenes Dye Release | https://www.youtube.com/watch?v=AoZVmgiUcGs