Kusatsuonsen Sen
草津温泉 千
Gunma Kusatsu
群馬県 草津町
Image: 楽天トラベル
Kusatsuonsen Sen
草津温泉 千
Gunma Kusatsu
群馬県 草津町
Onsen RyokanFree-Flowing Onsen
AT A GLANCE
Kusatsuonsen Sen is an acidic spring, chloride spring, and sulfate spring (pH 1.8, strongly acidic). Naturally flowing (no recycling or dilution). Contains ≥50 mg/kg of metasilicic acid, certified as a beauty spring. Per Japan's Ministry of the Environment guidelines, indicated for atopic dermatitis and psoriasis.
SOURCES
If a source spring listed for this facility looks incorrect, please contact us.
Stay at this hotel
PRKusatsuonsen Sen
From¥9,400/ person / night (tax incl.)
4.2(553)
Approx. lowest rate (varies by date & guests)
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USAGE
Free-Flowing Onsen
Pure spring water — no dilution, no recirculation
HeatedNo
DilutedNo
RecycledNo
FilteredNo
DisinfectedNo
AdditivesNo
▸Note
The temperature, pH and component values shown here are based on the hot spring analysis (source). Actual values in the bath may differ depending on heating, dilution, recycling and filtration. Please check current usage status at the facility.
FACILITY INFO
AI draft (unverified)Tattoo
Tattoo OKTattoos allowed only in private baths.
Private bath (Kashikiri)
Available
About tattoos and onsen
Hours
Weekdays: 07:00〜21:00
Weekends & holidays: 07:00〜21:00
Front Desk Hours
Transit
From JR Naganohara-Kusatsuguchi Station (JR Naganohara-Kusatsuguchi Eki): 45-minute bus ride + 20-minute walk. Approximately 20-minute walk from Kusatsu Onsen Bus Terminal (Kusatsu Onsen Bus Terminal). From Kan-etsu Expressway (Kan-etsu Jidōsha-dō) 'Shibukawa-Ikaho IC': 1 hour 15 minutes by car.
Parking
12 free parking spaces. Staff will assist with parking when full. Available from 12:00 on check-in day until 13:00 on check-out day.
Phone
Facilities
Vending MachineWi-FiRest AreaMicrowaveLoungeDelivery ServiceNon-Smoking RoomsToilet with Bidet
House rules
Not available for guests under high school age. No elevator in the building. Final check-in is 21:00. Non-contact check-in/check-out and keyless entry are available.
This information may change without notice. Please contact the facility directly for accurate details.
REVIEWS
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✨ The descriptions, catch phrases, and translations on this page are generated by AI (Claude). pH, temperature, and component values are OCR-extracted from the official analysis report. Learn more