Answered by Qi
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Jul. 27, 2011 19:56
I am not very clear but I can give you an example. It is about 10km from Jinshanling to Simatai part and it need 5 hours' hiking. However, the wall is not through all the way. I mean some part is broken and can not go through on the wall, but need a deture to the hill foot and get then get back on. Some part are not open to the public now, such as Simatai.