Kusatsu Kan
草津館
Gunma Kusatsu, Agatsuma District
群馬県 吾妻郡草津町
Kusatsu Kan
草津館
Gunma Kusatsu, Agatsuma District
群馬県 吾妻郡草津町
Onsen RyokanFree-Flowing Onsen
AT A GLANCE
Kusatsu Kan is a sulfur spring, acidic spring, chloride spring, and sulfate spring (pH 2.0, 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, chronic eczema, and psoriasis.
Search on other sites
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)Official site
Hours
Weekdays: 12:00〜14:00
Weekends & holidays: 12:00〜14:00
Day-trip bathing hours
Closed days: Irregular holidays
Transit
From JR Naganohara-Kusatsuguchi Station (長野原草津口駅), take a bus for approx. 25 minutes, alight at Kusatsu Onsen Bus Terminal (草津温泉バスターミナル), then a 5-minute walk. Our facility is located behind Yubatake (湯畑) 'Shirahatano-yu' (白旗の湯), just a 0-minute walk from Kusatsu Onsen's main tourist attraction, Yubatake (湯畑).
Parking
Available (9 spaces), free, no reservation required. Please come to the front entrance to unload your luggage, then move your car to a nearby parking lot.
Phone
Facilities
Main Public BathSmoking AreaShopArt Gallery
House rules
No smoking inside the building from April 1, 2020 (including heated tobacco). For smoking, please use the designated smoking area to the left after exiting the building. Kusatsu's hot spring water has strong sterilizing properties, and the washing area is designed in a traditional, narrow style. The floor can be slippery, so please be careful not to fall.
This information may change without notice. Please contact the facility directly for accurate details.
REVIEWS
Nearby Similar Hot Springs
✨ 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