No charge. According to the website of Caofeidian People's Government, the beach of Yuhai Tianxia Lake in Caofeidian New City belongs to the public sea area, and there is no charge, including the surrounding Evergrande Health Valley Bihai Yintan, Caofeidian Wetland, Domar Paradise and Silkworm Shakou Mazu Cultural Tourism Zone, all of which belong to free play projects.