Akatsuka Park (赤塚公園) Map
There are a lot of pine trees and other trees, you can take a walk in the fresh air even in hot summer. In spring, you can enjoy cherry blossoms at the south side of the park. There is big grass yard but no playground equipment.
Banpaku Kinen Park (万博記念公園) Map
There are 5 tennis courts and beautiful grass yard. You can enjoy picnic if it is fine weather.