Hachiman-cho, Tokushima City, Tokushima
Hachiman Onsen Otome-no-Yu
A relatively affordable natural-spring bathhouse with an open-air bath and sauna. The current local tourism information confirms that it qualifies as a natural hot spring through metasilicic acid, but does not provide enough data to establish a full spring profile.
Check before bathing
- Opening hours
- 08:00–23:30. Closed on the second Wednesday in April, July and November; if that date is a public holiday, it closes the following day. Adult admission ¥600; a no-frills bathing set is listed at ¥200.
Spring & water temperature
- Spring-source temperature
- Not published.
- Bathing temperature
- Not published.
- Spring source
- Hachiman Onsen; the precise source name is not published.
- Spring classification
- Natural hot spring meeting the legal standard through metasilicic acid. A full ionic classification has not been confirmed.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- Natural spring use is confirmed, but dilution, heating, circulation, disinfection and pool-by-pool supply details are not published.
How to read a bath profile
Spring-source temperature and actual bathing temperature are kept separate. Each score is shown independently for comparison rather than collapsed into one overall score.
