Are all the attractions within walking distance of Beidaihe?

Although these attractions all belong to this scenic area, it is a little far to reach one from another by walking. There is 3-7km from one to another scenic spot! However, if you take taxi or rent a car, one day is enough to cover most of them.

As for the amusement park, they share the same one by now. It is Nandaihe International Amusement Center.

okay thank you! Do you have any suggestions on the best things to see or do for a one day trip?

You are advised to go to the Dove Nest Park to see the sunrise and enjoy yourself. Then have fun at the east beach of Beidaihai. After that, go to the Safari Park for a visit. If time permits, go to Nandaihe International Amuseument Center to have fun. If your time is limited, you are highly recommended to enjoy the Xin'ao Marine World.