Badaliing great wall

Well, I think you may dwell near Beijing North Railway Station. Debao Hotel and Guoerzhao Hotel are two four-star hotels. It costs around CNY400 to 500 per night. From there you can walk to Beijing North Railway Station quickly and take S2 train to Badaling. Please remember that passengers take seat randomly when they get on the train. In this way, you should board the train as quick as you can so that you may find some seats.