Sōng Shān Ancient Cave Dwellings 古崖居
延庆县, 离德胜门102公里. 走八达岭高速, S102 到延庆, G110 到松山
Part of A Better Guide to Běijīng’s coverage of Běijīng Suburbs and Beyond
Chinese sources are spectacularly vague on the history of the caves, but are for once at least…