There is Gele Mountain in the distance. You can take the subway to Ciqikou, take the path or go to the tomb of the martyrs. This is the fastest way to the scenic spots along Hongyan. Of course, you can also go up from Xiyong along G3 19, walk to Geleshan Town, or follow the 300-step trail there to the tomb of the martyrs.
There is also the mountain over there in Bishan Institute of Mechanical and Electrical Engineering. The environment above is ok and quiet, but there are troops nearby, and sometimes mountains are closed;
You can go to Jinyun Mountain no matter how far it is, but leave early or you will come back late.