I went to Nanyinquan and Beiyinquan. Erlongquan seems to have not gone. It should be similar. I went there to taste the famous medicinal spring water. The so-called medicinal spring is water containing carbon dioxide. It is a gas-bearing child. It treats stomach ulcers. The habits of locals, people in other places should not be used to drinking, there are many nursing homes, Because the air is good, the water is good, the hotel's water is boiled and the mineral water tastes, this is especially like