There is a route up Baita Shan that takes you along the perimeter of the park itself, and brings you out on the road behind. Look for the steps that lead up to the mosque, to the right of the park entrance. As you climb, Chaoyang Shan is the hillside to the east. Map here.
Many of the doorways were still freshly decorated to bring good luck and prosperity during the New Year:
The air battle memorial, on top of Chaoyang Shan:
Near the back gate of Baita Shan, looking across to Chaoyang Shan: