This is actually a well-designed playground, but the location is not ideal. It is right near the Union City Bart and I rarely see many other kids at the playground.
Multi-level structure with ladders, bridges, and slides. Multiple bouncy horses. The ground is a mix of wood chips and soft foam. The Bart train is actually a bonus for my toddler because he likes to watch it go by every 10-15 minutes.
The parking areas are not close to the playground. You have to walk across the park. There are bathrooms in the community center in the same parking lot.
There is not a lot of shade at the playground, so bring a hat. There are benches around the perimeter.
Kennedy Park is located at 1333 Decoto Road in Union City.