Day 2, Black Water City, in order to protect the ancient buildings, the landscape car can only send to the location of the model built one by one, the restoration may be the construction and layout, can not let you feel the peace and order of life in the city, full of commercial flavor. I really want to go to the site to witness its vicissitudes, looking for the black general one by one riding out of the city wall cut open gap, because the legendary city wall is indestructible, the engineering quality supervision at that time is very cruel, craftsman after building the wall, will be a samurai arrows to shoot, If the arrow can be inserted into the wall, the craftsman will be executed; if the arrow can not insert the wall, the samurai will be executed. Such a cruel supervision eliminates the tofu residue project. It is a legend, it is true, everyone think for yourself. The 16-kilometer hike made me stop, leave some regrets.