八达岭高速改名叫京藏高速了，万里长城到拉萨。水关长城距离八达岭7公里，借光大牌，现在叫八达岭水关。这名字真不好，非常容易给一日游的黑导游钻空子。

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    7月10日的北京在酷热之后时雾时雨，很凉爽。从石佛寺小路上水关长城，路不远，也不难走。

    长城上长满青草，偶尔有些红红黄黄的花朵和果实，敌楼砖缝里还有温暖的小鸟蛋……人很少，时而飘过跟雾搅合在一起的行走的云。

    大段大段粗糙的修补痕迹几乎淹没了长城本来的摸样，看上去更像上世纪末期被拆迁的院墙。

    青春美少女的腰身拆穿了日积月累而成“资深美女”的曼妙幻想；日复一日摧毁了长城的容颜，堆积了中年的肚腩和莫名其妙的猜忌、抱怨。张长李短的鸡毛蒜皮里，残存着颓废的盛气凌人和冷漠的骄傲。

    一岁一枯荣，长城年年同。长城曾经的青春已消耗殆尽，有清风不怕错过明月。

    青春卡在裆下，中年活在路上。青翠且葱茏。

                                                                 2010年7月12日首都机场雾不散的正午