How can I get from Bird's Nest ( Hanting Express ) to Badaling?

The nearest subway Exit/Entrance to your hotel is Huixinxijie Beikou. You can take the subway line 5 there to Yonghegong, then change to line 2 to Jishuitan, then walk to Deshengmen to take bus no.919 to Badaling;
or take subway line 5 then change to line 2 to Xizhimen, then walk to Beijing North Railway Station to take a train to Badaling.