Great Wall of China, which section should I go to visit?

Elsie, many sections provide cable car service. If you go to Beijing for the first time, I think you'd better visit Badaling section because transportation to there is easier. You can choose to take S2 train from Beijng North Railway Station or take no.877 or 919 bus from Deshengmen. It both takes around 1 hour and 10 minutes. After you arrive, you can walk to the cable car terminmal easily.