DO NOT play with the Thames if you don't understand its tidal nature!

DO NOT play with the Thames if you don't understand its tidal nature!

This is not funny in the slightest, and I'm disgusted that men rushed ahead to leave, behing both panicking ladies and what looks like a child behind. The rivers have an unpredictable current due to it being narrowed over centuries and can suck people straight down. Do not play games on the Thames and never, EVER, leave someone behind!