It's really a long time to wait for the midnight snack! It runs for at least 40 minutes. If I were you, I would definitely ride a bike. It's only 8 kilometers, and you have to change trains. Besides, I have to wait that long. It took me 40 minutes to get there. The cycling route is to go east along Tianshan Road, turn right at Zhongshan West Road, then go straight and turn right at Caoxi Road. If you really want to take the bus, take the 320 bus to Xujiahui, and then go south to Caoxi North Road.