Hillside Park in Ankeny is a pain to get to, but it's worth the trek because it has unique playground equipment. It reminds me a nicer, newer version of Hawkeye Park, which has missing equipment. The park has a shelter with two picnic tables and a 1/4 mile paved loop trail.
Play Structures: Ages 2-5 & 5-12
Swings: traditional, toddler
Restrooms: seasonal modern portable
Parking: street parking, long walk