If you go to Suzhou by train, get on the bus from the station and then go to Pingjiang Road (although it's not far), it will take about half an hour.
Stroll along Pingjiang Road for about half an hour to an hour, and then take a bus to Jinji Lake for about half an hour.
It is estimated that if you come, you may go to the lakeside leisure square (music fountain) of Gong Li Dam or the Ferris wheel generation of Moonlight Pier. This section belongs to a relatively relaxed and comfortable place, and the night view is beautiful. The music fountain (with water curtain movies and flames) starts at 8 pm on Friday and Saturday and ends at 8: 30. There are many restaurants and cafes in Moonlight Wharf, but the consumption is high. You can take the Ferris wheel to see the night view of the park, and the landscape lights by the lake will be turned off from 9: 00 to 9: 30. So if you come at 8: 30, you're basically just browsing. Nothing interesting.
It is suggested to choose a place where you can stroll, walk and sit more. Suzhou is a slow-paced city, especially in the ancient city. If you are too busy, you won't feel the charm of walking. Especially considering that you won't arrive until 7 o'clock, it's estimated that you are quite tired. Don't arrange it too early.
To sum up, if you look at these two places:
To Pingjiang Road-around 7: 30.
Leave Pingjiang Road for Jinji Lake-around 8 o'clock.
To Jinji Lake-around 8: 30.
Only go to Jinji Lake:
Take a taxi/bus to Gong Li Dam at about 7: 30.
Go all the way along the lake embankment plank road to the music fountain-around 8 o'clock.
Music Fountain -8: 30
After that, you can go to Moonlight Pier or just stroll around.
If you only go to Pingjiang Road, you can go to some nearby places together. Suzhou is not a big city. You can walk from Guanqian Street to Pingjiang Road, and Pingjiang Road to Shiquan Street.