Let me introduce Japanese hot springs.Nagato Yumoto Onsen.
Hello, I'm Japanese hot spring tour YouTuber Bright Spirit.Let me introduce Nagato Yumoto Hot Spring ( Saikyo) in Yamaguchi Prefecture.
Nagato-Yumoto Hot Spring is a hot spring with a long history of 600 years.Especially for women, it's very good for the skin.

@Homepage (photo source)
https://www.hmi-ryokan.jp/saikyo/

@Price
Approximately 15,000 yen per person (varying depending on the time and plan)

@Address
〒759-4103　山口県長門市深川湯本1051