Panjin Red Sea Wetland Hot Spring Theme Park. Panjin Honghai Wetland Hot Spring Theme Park is a large-scale comprehensive tourism project integrating hot springs, wetlands and entertainment. It is located in Xinglongtai District of Panjin City, covering an area of 3 150 square kilometers, and is the largest wetland hot spring park in China. The hot spring water here comes from deep underground, with stable water temperature and rich minerals and trace elements, which is beneficial to human skin and health.