Can I walk to the Jade Buddha Temple from Pudong? I like to walk long distances.

Actually, it’s about 10 km and may take 2 hours to go there on foot. You are not suggested to walk the whole road there, but you can take a metro first and get off early then walk there.
First, walk south to Pudian Rd metro station to take line 6 and transfer to line 9 at Century Avenue. After that, transfer to line 13 at Madang Rd. Get off at Nanjing Rd (W) from Exit 11. It’s about 2 km, and you can walk north for about 5 minutes to West Beijing Rd, and then walk west along the road for 5 minutes. Turn right to Jiangning Rd, walk north along the road for about 30 minutes, you will get there.