No. 18 · Gunma

Ikaho Onsen

Ikaho Onsen ranked No. 18 in the published 2025 Japan hot-spring destination list. Check bathing options, access and stay details before planning your visit.

Ikaho Onsen hot-spring destination
Ikaho Onsen, Gunma

Spring information

Water and bathing details for Ikaho Onsen

Facility-level figures; blank town-wide averages are not inferred.

Named facility records for Ikaho Onsen. Figures marked “Not published” are not treated as town-wide averages.

FacilitySpringSource dataSupplyBath type
Ikaho Onsen Ishidan-no-YuCalcium-sodium sulfate-bicarbonate-chloride spring; neutral and low-tonicity. Source: Ikaho's Golden Spring.Source temperature: Not published for this facility.
pH: Not published in current facility-specific material.
Shibukawa City confirms that Ishidan-no-Yu uses the Golden Spring. Current city pages do not provide a complete water-addition, heating, circulation or disinfection table for the bath, so it is not described as source-flowing.Day-use bath. A public bath on Ikaho's stone-step street, using the Golden Spring. The normal schedule is 10:00–20:00, but September 2026 included both a regular closure and an additional closure; check the city notice for any new changes.
Ikaho Open-Air BathCalcium-sodium sulfate, bicarbonate and chloride spring; neutral and hypotonic. Source: Ikaho Onsen's Golden Spring.Source temperature: Not published for this facility. The source area's temperature is not substituted here.
pH: Not published.
The Shibukawa-Ikaho Onsen Tourism Association says the bath uses the Golden Spring as source-flowing water. This does not mean the source area's reported yield is the bath's own supply volume.Day-use bath. A natural outdoor soak near the hot-spring source, best paired with the nearby Kajika Bridge and source-viewing spots. Come for the Golden Spring and the setting rather than a full-service spa: there is no washing area, and the bath has not confirmed a tattoo policy.

Destination comparison

What this onsen town offers

Popularity

91/100

History

94/100

Spring character

92/100

Town culture

96/100

Seasonal scenery

91/100

Access

72/100

Local history

How the town developed

Four seasons

Seasonal conditions and travel rhythm

SpringMar–May
Daytime range: 3–18°C
SummerJun–Aug
Daytime range: 20–29°C
AutumnSep–Nov
Daytime range: 8–23°C
WinterDec–Feb
Daytime range: -3–7°C

Plan your stay

Ikaho Onsen: day trip or overnight?

Compare travel time, bath access and the time you want to spend in town.

Nearby destinations

Other places in the same prefecture in the published ranking.

Related guides

Guides to Ikaho Onsen

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Official sources

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