Climb to the top of the Dayingpan wall 大营盘 ( Big Camp Plate Great Wall ) . The stairs are steep upward, and even steeper down...
On top you will have a view to remember the rest of your life. Breathtaking.
http://www.greatwallforum.com/forum/...dayingpan.html
徒步大营盘 Big Camp Plate Great Wall hike
http://www.lvwo.com/bbs/viewthread.php?tid=21271