The Jiankou Great Wall is in Huairou District, just to the west of Mutianyu.
Jiankou was the most dangerous place that I visited.
I didn't know enough to approach from Xizhazi
on the north side, so I started from the south side. There was quite a climb just to reach the
wall. Then, you find the mountain ridges upon which the wall is built are steep in all directions.
How did I ever make it up here?!
Can't climb this, no way! (Click for large image)
Watch your step
Next page: Huanghuacheng Great Wall