Bus route: No.699 → Metro Line 4, the whole journey is about 13.9 km.

1. Walk about 540 meters from Qinghe Xiaoying and arrive at Qinghe Xiaoying Bridge West Station.

2. Take bus No.699, pass 7 stops and arrive at Zhongguancun South Station.

3. Walk about 20 meters and arrive at Zhongguancun Station.

4. Take Metro Line 4, pass 4 stops and arrive at National Library Station.