How do I get from Beijing Zoo to Summer Palace? Please all options. Thanks.

Hi, you can catch subway line 4 to Beigongmen Station for about 20 minutes, walk westward for 400 meters, you can see your destination then. The ticket fare is CNY4/person.
Or you can take the bus Jingchengshuixichanghe line from Dongwuyuan Matou Station to Ruyimen Matou Station for 25 minutes to find your destination. The ticket fare is CNY2/person.