Senami Onsen, Murakami, Niigata Prefecture
Yu-dokoro Soba-dokoro Iwafune
A strong low-cost choice for a sunset-facing, source-flowing bath above the Sea of Japan. The long stair climb makes it a poor fit for anyone who has trouble with stairs.
Facility photos
Check before bathing
- Opening hours
- 10:00–22:00; last admission 21:00. Adults ¥800; children ¥400. Day-use availability varies, so check the facility's current calendar before going.
Spring & water temperature
- Spring-source temperature
- Not published for this property.
- Bathing temperature
- Not published.
- Spring source
- Iwafune's spring; the current facility page does not identify a well or source number. The analysis for nearby Taikanso is not applied to Iwafune.
- Spring classification
- Chloride hot spring; the current facility page does not give a more detailed ion classification.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- The facility describes the bath as completely source-flowing. It does not publish a full breakdown of water addition, heating, circulation, disinfection or flow rate.
Bathing indications
The facility identifies the water as a chloride spring but the current property-specific analysis sheet was not available, so no broader indications are added.
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.
