Sumishan Grottoes, located about 60 kilometers northwest of Guyuan City, here in the Tang Dynasty (618-907), is an important pass, but also an important pass on the Silk Road. Especially spectacular, pleasant scenery, suitable for play. After the May Day turn around, drive off the highway, stay at the Vienna Hotel at night, there is a bath next to it, take a bath, beautiful, sleep for one night, go home directly the next day. A very happy play, the hotel is also great!