Over the weekend we discovered a new-to-us park that while just off a main road (Linden) was hidden. Underwood Park is a really nice park. It's large and has two playgrounds with a mix of old and new equipment. There were bathrooms, a tennis court, several large and small shelters, a baseball diamond, basketball court, big shade trees, and plenty of room to run. A lot of Normal's parks have no shade, so I was really pleased to find a park with mature trees.
What I loved about Underwood Park was the fence around most of the park. I didn't have to stay glued to H making sure he didn't run into the road or an off limits area.