Ubayu Onsen Masugataya
Image: Agoda
PR · Agoda

Ubayu Onsen Masugataya

姥湯温泉 桝形屋
Info pending

Yamagata Yonezawa

山形県 米沢市

Onsen RyokanFree-Flowing Onsen

AT A GLANCE

Ubayu Onsen Masugataya is a sulfur spring, iron spring, acidic spring, and simple spring (pH 2.6, acidic). Naturally flowing (no recycling or dilution). Per Japan's Ministry of the Environment guidelines, indicated for atopic dermatitis, chronic eczema, and psoriasis.

SOURCES
♨Ubayu Gensen
姥湯源泉
Acidic Sulfur-containing Iron(II) Simple Hot Spring
硫
Sulphur Spring
鉄
Ferruginous Spring
酸
Acidic Spring
単
Simple SpringpH 2.651℃自然湧出
See effects, components & details

If a source spring listed for this facility looks incorrect, please contact us.

How Long to Stay (Toji)
Start with 2 nights / 3 days

Japan’s Ministry of the Environment notes that even a short stay refreshes you. For a full therapeutic cure, around 2–3 weeks is the guideline.

More on toji length
Stay at this hotel
PR

Ubayu Onsen Masugataya

From¥18,750/ person / night (tax incl.)
4.6(96)

Approx. lowest rate (varies by date & guests)

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Sample caption

Ubayu Onsen Masugataya (Yonezawa) Sulphur Spring / Ferruginous Spring / pH 2.6 / 51℃ #onsen #yonezawa #sulphurspring https://onsen-analysis.com/en/onsen/ubayu-masugataya?utm_source=card&utm_medium=social&utm_campaign=onsen_card

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
Official siteOpen
Tattoo
Confirming
Bathing wear (Yuami-gi)
Not available
About tattoos and onsen
Hours
Weekdays: 09:30〜15:30
Weekends & holidays: 09:30〜15:30
Day-use bath reception hours. Outdoor baths only available.
Closed days: Irregular holidays (for day-use baths), Early November - Late April (winter closure).
Transit
Get off at JR Ou Main Line Toge Station (JR奥羽本線峠駅). Shuttle service available for staying guests only (reservation required). Approx. 25 min from Toge Station to parking, then approx. 200-250m walk from parking to inn. If walking, approx. 8km (2h 20min) from Toge Station. By car: Approx. 70 min from Tohoku Expressway Fukushima-Iizaka IC (東北自動車道福島飯坂IC) via National Route 13 (国道13号線), or approx. 1h 10min from Yonezawa-Chuo IC (米沢中央IC).
Parking
Free parking available (40 spaces). Approx. 200-250m walk from parking to inn (approx. 5 min). Cars cannot be parked directly in front of the entrance.
Day use fee
¥700Children (ages 3 to elementary school age) 300 yen. Outdoor baths only available.
Phone
090-7797-5934
Facilities
Outdoor baths (mixed-gender & women-only)Indoor baths (gender-separated)Toilets with bidet functionsShampooConditionerBody soapHair dryerPrivate resting rooms (available for a fee for day-use bathing)
House rules
All guest rooms are non-smoking. Curfew is 9 PM. A separate hot spring tax is required (150 yen per person). Day-use bathing is limited to outdoor baths only. Bathing is not permitted outside of day-use reception hours.
Sources
hitou.or.jpJalanxn--octt84bmki.comOfficialTourism associationtravel.yahoo.co.jpnihon-hitou.orgyoutube.comtattoo-ok.jp
This information may change without notice. Please contact the facility directly for accurate details.

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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