We love going to Inlow Park to cool off in the summer. It features a "sprayground" that is so much fun for the kids. There are all sorts of pipes and sprays that the kids can run through and get wet. Some are interactive. There is a picnic area with grills and restrooms available.
In the woods behind there are several playgrounds that are supposed to give the kids the feeling of being in treehouses. They are nice, but more geared towards older children.