Guansutang is the most famous and time-honored brand in Zhoushan City, and it is also an important part of Putuo Mountain's food culture. Guanyin cake has always been the most famous snack in Putuo Mountain, but unfortunately in recent years, the craft has lost its transmission, thanks to Guansutang's retention of ancient skills. Guansutang is located on Xianghua Street near Puji Temple. It is now a high-end Guanyin cake production place. A box costs 30 yuan. Of course, the taste is not covered. If you want to buy a letter, you can come to this place to buy it.