The 100-meter fountain in Harmony Square is generally open on holidays such as May 1st, 11th, Dragon Boat Festival and Mid-Autumn Festival, and it is not open in winter or when the wind force exceeds 4. The opening hours of "Eleventh" this year are 10 to 7 at 9: 00- 10: 00 and 4: 00-5: 00 every morning. There will be changes in other seasons, but it is generally open for one hour in the morning, one hour in the afternoon and a rest 10 minute. The 100-meter fountain is still spectacular, and it's good to see it if you haven't seen it before.
Get off at Harmony Square around Shunyi East Bridge (buses 9 15, 850, 970, 923, 945 and 924 all arrive), and then walk along Jianhe Park. The scenery of Jianhe Park is still good.
I hope I can help you.