Oboshi Park (大法師公園) is a park in Fujikawa. It has been awarded designation as one of the top 100 places to view cherry blossoms in Japan, and has a festival every year including night time illumination.
You can park at the bottom of the hill leading up to the park and walk up, or drive up to the top where there is some parking. The road is narrow and winding, so be careful.
More information (JP):