Sengokuharaonsen Senkyourou
Image: Agoda
PR · Agoda

Sengokuharaonsen Senkyourou

仙郷楼
Verified

Kanagawa Hakone

神奈川県 箱根町

Onsen RyokanFree-Flowing Onsen

AT A GLANCE

Sengokuharaonsen Senkyourou is an acidic spring, sulfate spring, and chloride spring (pH 2.1, 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
♨Owakudani Onsen Steam-induced Mixed Spring
大涌谷温泉 蒸気造成混合泉
Acidic Calcium Sulfate and Chloride Hot Spring
酸
Acidic Spring
硫塩
Sulphate Spring
塩
Chloride SpringpH 2.160.6℃造成温泉（蒸気造成混…
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

Sengokuharaonsen Senkyourou

From¥26,600/ person / night (tax incl.)
4.4(384)

Approx. lowest rate (varies by date & guests)

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Sample caption

Sengokuharaonsen Senkyourou (Hakone) Acidic Spring / Sulphate Spring / pH 2.1 / 60.6℃ #onsen #hakone #acidicspring https://onsen-analysis.com/en/onsen/sengokuharaonsen-senkyourou?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
Official site
Official siteOpen
Tattoo
No tattoosNot allowed in the shared baths. The property directs guests with tattoos to its reservable private bath or the bath in their room (official website).
Private bath (Kashikiri)
Available
Room with private open-air bath
Available
About tattoos and onsen
Travelers with tattoos can still bathe comfortably in a private bath (Kashikiri) or a room with a private open-air bath.
Hours
Weekdays: 00:00〜24:00
Weekends & holidays: 00:00〜24:00
Public baths are available 24 hours. Private open-air baths are available from 5:00 to 24:00.
Closed days: Open all year round
Transit
From Hakone-Yumoto Station (箱根湯本駅), take the Hakone Tozan Bus (for Togendai (桃源台)) for approx. 25-30 minutes, get off at 'Sengokuro-mae' (仙郷楼前) bus stop. Approx. 15-20 minutes by car from Tomei Gotemba IC (東名御殿場IC).
Parking
Available, 80 spaces, Free
Phone
0460-84-8521
Facilities
Public BathOpen-air BathPrivate BathIn-room Open-air BathGift ShopVending MachinesBanquet HallConference Room
House rules
Mixed-gender bathing in the public bath is restricted for individuals aged 7 and above, according to Kanagawa Prefecture (神奈川県) ordinance.
Sources
RakutenJalanryokan.or.jpOfficialRakutenmapion.co.jpjtb.co.jphakone.or.jp
This information may change without notice. Please contact the facility directly for accurate details.
Last updated: 6/1/2026

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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