Jade Hot Spring Resort and Tiantan Hot Spring. Tangyu Hot Spring Resort, located in Tangyu Town, Lantian, was called "Shimen Tangquan" in ancient times, which was the first of the three soups in the prosperous Tang Dynasty and was known as "the best soup in the world". The hot spring water here is colorless and tasteless and invisible to the naked eye. Rich in mineral elements such as potassium, calcium, sodium and sulfate ions, it can effectively cure more than 70 diseases, especially chronic low back pain diseases such as rheumatism, arthritis and dermatosis. Tiantan Hot Spring is located in Tangyu Town, Lantian, near the foot of Zhong Nanshan Mountain at the northern foot of Qinling Mountains. Surrounded by mountains and rivers, the environment is unique and the air is fresh. 18 Tang Chi is a large-scale hot spring ecological zone that integrates the functions of hotels, restaurants, chess and cards, tea art and business meetings.