Mud theme introduction: The mud of Xiushan Island combines the essence of the ecological environment of the East China Sea and the alluvial deposits of the Qiantang River. It is natural, clean, delicate, suitable for entertainment, beneficial to health, and has great development potential and value. Tests by the Shanghai Institute of Life Sciences of the Chinese Academy of Sciences show that Xiushan mud contains a variety of natural substances such as germanium, zinc, calcium, various vitamins, and amino acids that are beneficial to human skin. They are easily absorbed by the human epidermis and can beautify and condition the human body from the surface to the inside. Metabolism, has health care, skin care, sterilization and other effects; it is said that Xiushan mud contains higher vitamin C than mud from other places such as Korea, and is favored by health people.