Showa Memorial Park is a suitable place for family visit. The place near the Tachikawa station is open for free, which is good enough to have a picnic on warm day. This park is vast. You need to spend two hours at least walking through it from south to north. If you go into the park through the Tachikawa gate and leave through the Sunagawa gate, you can take bus to come back to Tachikawa station. A little train is available and the free pass for one day costs JPY 520 for visitors over 4. It has perfect infrastructure like bathrooms, benches and vending machine. The information of anthesis date can be found at the entrance. I saw plum blossom here. The winter sweet was at anthesis. The flower fragrance was impressive. The only downside is that it is too cold in winter.