Highlights: The Tuankou Zhong'an Radon Hot Spring Center is one of the largest hot spring centers in the East China region. It has a mixed gender indoor pool. There are more than 40 hot spring pools in the indoor and outdoor hot spring areas, each with 25 different functions. The Tuankou Radon hot spring is a hot calcium carbonate hot spring. The spring water is rich in mineral elements such as strontium, radium, strontium and barium. It has the functions of regulating human autonomic nerves and promoting metabolism.