As a freshwater kid who rarely gets to the ocean, I think that tides are just awesome. That's why I was excited last week when I stumbled upon this very cool collection of low and high tide comparison photos from around the world.
I'm always amazed at how much of a difference there is between low and high tide.
If you are this guy, I've got a pile of resources that will help explain how tides work so that even a 6 year old will understand. Download your free teaching resources here.