You don't need tickets, but you need an appointment. Lonely Library, also known as Sanlian Bookstore seaside public library, is located on a seaside beach in Beidaihe New District, Qinhuangdao City, less than 100 meters away from the sea, and opened on April 23, 20 15. The lonely library is about 450 square meters, with three floors and large French windows facing the sea, so that everyone inside can see the sea. The seats in the reading room are stepped from high to low, so people sitting on the steps can see the sea when they look up. According to relevant information, Beidaihe Lonely Library does not need tickets, but it needs to make an appointment for Anaya app to enter the library.