Indoor Skydiving Chicago Indoor Skydiving Chicago is one of the fastest growing sports in Chicago. WHY? Because indoor skydiving is a high adrenaline sport which can be done on a budget AND it doesn’t invlove planes. The iFly indoor skydiving centre in Naperville is a newly built facility with the latest equipment and highly trained accredited indoor skydiving instructors to ensure that beginners and pros of all ages get to experience and enjoy the thrill of skydiving without having to jump out of a perfectly good areoplane at over 10,000 feet.Scroll down to see more details but whatever you do make sure you try indoor skydiving at least once in your life. You can also buy an indoor skydiving gift certificate for a friend or loved one.