See What Full Blast Awesomeness Is Coming to Tri-Cities! (and Seattle)
There is this thing called "Slide the City"...And it is freaking awesome!
Basically, this company tours the US with a 1,000 foot long water slide, yes, one fifth of a mile, water slide, and you can ride it!
They are coming to Seattle August 26th, and to Richland sometime soon...