This was a pretty cool event. I have not been to the Six Flags theme park in at least 6 or 7 years. I'm pretty sure the last time I was there, the water park was not even built yet! The race was very well organized and was not crazy at all -I would estimate that there were about 200-300 participants or so. I like that it was not crazy like some of the bigger downtown Chicago races. The first mile was through the parking lot; at mile 2, you enter the park. It was super cool to run through the park and see how it has changed. The water park portion was so extensive that I definitely want to go back next summer. -Not just for the water park but for the rides too! I had no idea of the additions and remodeling that had gone on. Running through the entire park brought back so many childhood memories for me. It was crazy to see all of the old structures still there as well as many new rides and attractions. If you are looking for some new "scenery" during a 5K, this was a cool event. My only criticism is how they handled packet pick-up: it was only 12-3pm on the Saturday prior in Gurnee. I had to work that day, and when I left to try to make it in time, there was a torrential rain storm and I had to get off the highway. However, I'm proud of the way they handled it -my friend who did make it out to Gurnee said they will let you come to the race early and pick up the packet beforehand. So, that's what I did. No long lines, no drama. Again, a unique event for those looking for something different than the typical neighborhood race. read more