Nice intimate park. Clean and well run. The owners go out of their way to have activities on the weekends, not just for kids but for the adults as well. We have been RVing there for 3 years and it is our favorite park. One of the things that we enjoy the most is that even when the park is completely full, all of the children that are there are very well mannered and that people are so respectful of one another. You cannot camp there and not make a friend.
Meramec State Park is a great place to stay. The campground is clean and the large trees give great shade. The Meramec River runs along the side of the camp grounds with easy access. It is also the site of Fisher Cave, one of the many caves in Missouri. You can take a guided tour (seasonal) of the cave for a nominal fee.