What's the difference between a hot spring and a bathtub?

The hot spring environment is quite good, of course, it is indoor. As soon as you enter the hall, birds and flowers are singing, and you seem to have come to the southern world. There are several large and small swimming pools. What we want is a moderate swimming pool. When entering the pool, the water temperature is just right, and the first feeling is comfort. Look at the flowers that are still blooming in winter and two pairs of squeaking birds, and you will soon drink half of the wine you drink in your stomach. The hot spring water in the pool is flowing and quite clean. You can't waste time in hot springs. You must drink it. Here comes the talking waiter. Forget red beer, drink it, soak in hot spring water, listen to birds singing and drink red wine. That feeling is as comfortable as you say, as comfortable as you say, as cool as you say!