No. 86 · Toyama
Kintaro Onsen
Kintaro Onsen ranked No. 86 in the published 2025 Japan hot-spring destination list. Check bathing options, access and stay details before planning your visit.
Spring information
Water and bathing details for Kintaro Onsen
Facility-level figures; blank town-wide averages are not inferred.
Kintaro Onsen is compared with Ganso Niemonya at Hokuzan Onsen in Uozu. These are separate named onsen areas and their waters are not treated as one shared source.
| Facility | Spring | Source data | Supply | Bath type |
|---|---|---|---|---|
| Kintaro Onsen / Karuna-no-Yakata | Sulfur-containing sodium-calcium chloride spring (hydrogen-sulfide type); the operator classifies it as high-tonicity, neutral and high-temperature. | Source temperature: Approximately 75°C at the source pH: Not published on cited pages (the operator's classification says neutral, without a numeric pH) | The operator describes the baths as 100% source-flowing spring water; it does not give bath-specific treatment details. | Large indoor mural bath, large garden open-air bath, and Karuna-no-Yakata day-use bathing complex with multiple bath styles. |
| Ganso Niemonya (Hokuzan Onsen) | Hokuzan cold mineral spring, classified by the inn as a weak saline spring; the operator adds an artificial radium bath treatment. This is not Kintaro Onsen water. | Source temperature: Not published for the source; the operator lists bath water at 38–41°C after treatment. pH: Not published | The inn describes use of Hokuzan Onsen cold mineral water with artificial radium added. It does not publish bath-specific flow-through, dilution, or circulation details. | Two alternating communal bath areas: one has an indoor bath and an open-air bath with a ceramic tub; the other has an indoor bath. Guest-room open-air baths are not source-fed. |
Destination comparison
What this onsen town offers
History
71/100Spring character
78/100Town culture
72/100Seasonal scenery
73/100Access
69/100Local history
How the town developed
Four seasons
Seasonal conditions and travel rhythm
Plan your stay
Kintaro Onsen: day trip or overnight?
Compare travel time, bath access and the time you want to spend in town.
Day trip
Check the first and last transport connections, then confirm which baths accept day visitors and when they stop admitting guests.
One-night stay
Compare the ryokan’s bath access with public day-use options and the journey back to your next stop.
Stay plus a day bath
Choose one bath experience for your stay and use a day facility for a different source or setting, where the published details support it.
Nearby destinations
Other places in the same prefecture in the published ranking.
Official sources
