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Whether you think it's that you can relate to them, or pure malice, there's innately something humorous about watching people fall.

Here's a little preview of the 'Crash Course' inflatable, so you can see what you're in for this year. Register for a wave today before prices increase on Friday, May 13!

People who've done it tell you about the experience!

The Insane Inflatable 5k is coming soon to Cedar Rapids. Join a wave today and save!

Last year's Insane Inflatable 5k proved to be a fun-filled time! Can you find yourself in the pictures? If you see a friend, tag them in the comments below!

Last year, the Insane Inflatable 5k came to Cedar Rapids for the first time and I had no idea what to expect. Now that I do, I can't wait to do it again!

Last year, a TON of people ran the first-of-its-kind 5K in Cedar Rapids with 12 giant inflatables along the way. This year, there are plenty of new additions.

The Insane Inflatable 5k is returning to Cedar Rapids on Saturday, June 11. If you want to save yourself some cash, sign up now before prices increase!

All of us at KRNA were ecstatic to hear that the Insane Inflatable 5K is returning to Cedar Rapids for another round of bouncy, hysterical fun! We are thrilled to once again invite you to come bounce with us in 2016.

Remember how much crazy fun we had last year at the Insane Inflatable 5k presented by GoDaddy? Well, it’s back in 2016 on Saturday, June 18 and we have a special offer for you to get insane savings on your registration fee.