This cave yard is the former site of Rongtaixiang firm in the late Qing Dynasty and early Republic of China, was founded and operated by the Guo’s family of Laoniuwan. Their business started with the deep processing of small grains, including vinegar, wine, tofu and so on. There are two distilleries and tofu shops in the yard, and a big stone mills outside the courtyard. The main cave in the courtyard is more spacious and bright than other caves, which was Guo's workshop once. Now it has been transformed into a teahouse for tourists to enjoy tea and enjoy river scenery.