Take line 11 north to Nanxiang, follow the brown signs, walk 15 minutes, and you'll come to this place on your right: Guyi Gardens.
It's a little oasis set in the Shanghai suburbs and the town where xiao long bao originated.
The greenery is lush, most of the garden is shaded, and it was surprisingly uncrowded.
We didn't know that soup dumplings were available at the tea house on the garden grounds, so we headed to the restaurant next door. For just 25 kuai, we ate enough dumplings to fill us both up.
I wouldn't go out of my way to come back here when there's so much more to see in China, but for a Saturday afternoon excursion that's reachable via metro, these gardens made for a great city escape.