All I can hear is my mother's voice telling me I'm going to break my neck.
A little clicking around brought me to a guy named Brice Milleson's YouTube page, which features this video in full. Turns out they build something like this every year. The video that's going around now is from 2014. There's a 2013 version, too.
YouTube
The slide, which is called the Slip 'N Fly, is located at a sports camp called Ohio Dreams (for kids 7-17, sorry adults). The slide and pool is available for rent, but it'll run you about $5,000.
The camp looks like it's for kids who excel at skiing, snowboarding, BMX, and skateboarding, and is sponsored by Mountain Dew (the logo is everywhere).
Let's take a look at the Slip 'N Fly again, shall we?
If you're thinking, oh I could totally do that, I'd be fine, here's a clue that this slide is not for the average Joe: Even legendary skateboarder Tony Hawk looks nervous to give the ol' Slip 'N Fly a shot.
YouTube
There are tons of slip 'n slide videos on YouTube, and if you can silence the anxious voices in your head (okay, the ones in my head), they're worth looking at.
This one launches into the ocean (this looks very shallow!):
There are but a few weeks of summer left, daredevils!