These two places are quite far away. Relatively speaking, the dinosaur park is a little closer to the railway station → Dinosaur Park can take bus No.29 (the platform is at Xinfeng East Bridge). There seems to be a bus that goes directly to Dinosaur Park Railway Station, so there is no need to take the bus.
If it is snack street, it is Shuangguifang South Street, the most bustling commercial street in Changzhou. Many buses can go to bus No.24, bus No.42, bus No.23, bus No.56 and so on
It's also good to give some advice to Yancheng. You can also go to play in Zouqu. < P > As for the arrangement, it's hard to say. You can go to the dinosaur park first, then to Nanjie and then to the Playful Valley. My personal opinion.
I hope I can help you.