Introduction to Zhifu: Zhifu District of Yantai City is one of the earliest foreign trade ports in China's history. It is named after the largest and most typical Lulian Island in the north, Zhifu Island. The world's authoritative Encyclopedia Britannica "The price of Yantai is "CHEFOO". "Chiba" is Ganoderma Lucidum. The shape of Zhifu Island is just like a huge ganoderma lucidum; Zhifu Island lies in the middle of the Yellow Sea, like a natural barrier, guarding the fertile soil behind it. That is to say, this island has the same shape as "Ganoderma lucidum" and has the same effect as "罘", so it is called "Zizhi Island".