Take Line 9 of the subway and get off at National Library Station. Exit from Exit E and walk 10 meters, then turn left and walk 280 meters along Zhongguancun South Street. Cross the street via the underground passage and continue walking 50 meters along Zhongguancun South Street. Walk straight into the Zhongguancun South Street auxiliary road and proceed 20 meters. Turn right and walk 290 meters, then turn left and cross the street, walking 70 meters forward. Walk straight onto Lian Bridge and proceed 30 meters. Turn to the right front and walk 40 meters, then turn to the left front and walk 50 meters. Turn to the right front and walk 30 meters, then walk straight onto Rainbow Bridge and proceed 30 meters. Turn to the left front and walk 70 meters to reach the park. Find the stone railing and take a photo.