Driving route: the whole journey is about 24.3km

Starting point: Yanqi Lake

1. Start from the starting point in the east direction, drive 211m, turn left and rear

2. Drive 61m, turn right and enter Yanqing Road

3. Drive along Yanqing Road for 611m, and turn left

4. Turn left ahead

7. Drive for 491 meters, turn right and enter Beijing-Jiaxian

8. Drive along Beijing-Jiaxian for 2.5 kilometers, and turn left ahead and enter Beijing-Jiaxian

9. Drive along Beijing-Jiaxian for 1.3 kilometers, head for Huidu Road/Jingcheng Expressway, and turn right slightly and get on the ramp

11. At the exit of Huairou City/Kuangou/Changping/Miaocheng, turn right slightly and get on the ramp

12. Drive along the ramp for 631m, turn right ahead and enter Jingmi Road

13. Drive along Jingmi Road for 1.1km and enter Huaichang Interchange

14. Drive along Huaichang Interchange for 181m, turn left and enter S318

15. Follow S318. Turn right

17. Drive 2.7 kilometers, go straight into X115

18. Drive 1.6 kilometers along X115, turn right

19. Drive 31 meters, turn right ahead

21. Drive 151 meters, turn left ahead

21. Drive 141 meters, and turn left rear

.