Hello, I'm in shanghai and I want to spend 1 day in Suzhou.

To be honest, one day is not enough for you to our around these scenic spots. Maybe you should give up Garden of Master of Nets and Couple's Retreat Garden.

For the tour about your next day, you are suggested to choose one of these three ancient town because the scenery is similar about the water town. Zhouzhuang is highly recommended and it is worth a day. Have fun!