scenery along the walkway to shenying tiankeng within the three natural bridges of wulong karst national geology park in china.

walkway walking path route shenying tiankeng wulong karst geology park chongqing china asia three natural bridge unesco world heritage rock stone landscape landmark famous place travel destination destinations trip tour tourism tourist attraction outdoor outdoors outstanding interesting attractive geo geological geography eco ecology limestone nature scenery scene view viewpoint arch surface texture layered background blur