Bus route: Metro Line 4 → Metro 10 → Metro Line 5 → Metro 15, with a total length of about 38.4 kilometers.

1. Walk about 470 meters from China Meteorological Bureau to the National Library Station.

2. Take Daxing Line of Metro Line 4, pass 3 stops and arrive at Haidian Huang Zhuang Station.

3. Take the subway 10 line, after 8 stops, reach the south exit of Huixin West Street.

4. Take Metro Line 5, pass 2 stops and arrive at Datun Road East Station.

5. Walk about 370 meters and transfer to the subway 15 line.

6. Take the subway 15 line, pass 10 station and arrive at Houshayu Station.