This 'How to spot a rip' exercise from Prof Rob Brander at #UNSW is excellent.
Anyone who spends time at the beach should be able to ID a rip and know what to do if you get caught in one! In the immportal words of Douglas Adams - DON'T PANIC.
Quietly proud that I spotted all the rips, but living my whole life up until now on the coast, it would have been slightly embarrassing not to have!