For all the families out there who are looking for a fun water park, I suggest Columbus, Nebraska. It's VERY kid friendly and adult friendly. There is a gradual incline so the small ones can go in slowly, along with a few little slides and swings for infants/toddlers. There's also a lazy river for everyone and then a few bigger slides (for people 4' tall)! It's UBER fun and really a nice little place. Kids 4 and under are FREE!
Every year, we head up to Columbus to visit aunts, cousins and grandmas and go swimming for a day, and it's really nice. Kids have so much fun! Even the kids from Colorado look forward to the water park. Check out pics below!