I took the train to Nishikawaguchi in the evening.
Sauna Address: 1-22-7 Nishikawaguchi, Kawaguchi City, Saitama Prefecture.
The bathhouse is upstairs, and I took the stairs to go upstairs.
The lady at the front desk told me that the price was 9,000 yen for 60 minutes. After the guests took a...