Sakurayama Park is a lovely spot to take a break. Have a picnic, toss a ball around or just lie on the soft grass and close your eyes for a while.
To visit this recreation and green space, you'll need to find your way to Fujioka. You'll find lots of other interesting attractions in the area, including Hodosan Small Animal Park, Suisenji Temple, and Chichibu Kegon Waterfall.