Mabie is a great spot to stop if you are walking around downtown Summit. Partly fenced to the busy street, this playground is a favorite in warmer weather for its location, partial shade and picnic tables. A hot dog vendor is usually stationed by the park, but there are other options nearby. No sandbox, but the bocce courts attract young sand enthusiasts.
Make a Day of It: There isn't any shortage of restaurants in Summit, but on a warm spring day Applegate Farms on Beechwood Ave. is a perfect stop. The train station is a block away where you can see the tops of trains pass below you via large glass windows.