Apparently Hidden Water Pools have been around for a couple years but the last time I went to the novelty pool store was never so I'm sure you can understand how I might have missed them. Basically they're pools with a giant pneumatic bottom that is slowly raised to become a patio. You can get one up to 18-feet circular and lower the depth of the pool from anywhere from 1-inch (for the worst swim ever) to 6-feet. Unfortunately, during the transformation whatever was on your patio is now in your pool, so you're gonna want to make sure it's clean first. Know what I'm saying? I'm saying nobody wants to swim with a dead raccoon.
Hit the jump for a couple videos of the pool in action.
Thanks to Mark, who just swims in water treatment plant like the rest of the mutants.