No, i visit the hotspring frequently and i always swimming but never got any problem,
Not real, the water is good for swimming and a good thing is flowing so relax and enjoy the natural pool.
I don't know, you should ask to some tourist guide to be 100%sure. I just can say that there are some little fishes that eat your dead skin when you plunge into the water (the ones that are used to do some kinds of pedicure).
No, we also went swimming there, didn't have any problems and also the local people we ask said, it's not dangerous.
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