Isawa Onsen
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Isawa Onsen

旅館　日の出温泉
Verified

Yamanashi Fuefuki

山梨県 笛吹市

Onsen RyokanDay-use BathFree-Flowing Onsen

AT A GLANCE

Isawa Onsen is a simple spring (pH 8.1, mildly alkaline). 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 autonomic disorder, insomnia, and fatigue recovery.

SOURCES
♨Ryokan Hinode Onsen
旅館 日の出温泉
Simple hot spring
単
Simple SpringpH 8.136.3℃Self-flowi…
See effects, components & details
♨Yamanashi-ken Kigyo-kyoku Isawa Onsen Kanrijimusho Kyutoguchi
山梨県企業局 石和温泉管理事務所給湯口
Alkaline simple spring
単
Simple SpringpH 9.0845.9℃
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.

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Sample caption

Isawa Onsen (Fuefuki) Simple Spring / pH 8.1 / 36.3℃ #onsen #fuefuki #simplespring https://onsen-analysis.com/en/onsen/hinode-onsen?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
Tattoo
Confirming
Private bath (Kashikiri)
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
Closed days: Saturday
Transit
8-min walk from JR Isawa-Onsen Station (JR石和温泉駅) North Exit / 20-min drive from Chuo Expressway (中央道) Ichinomiya-Misaka IC (一宮・御坂IC)
Parking
Available (Free), 40 spaces
Day use fee
¥500Bath tax of 150 yen required separately
Phone
0553-26-2454
Facilities
Large Public BathOpen-air BathRest Area / LoungeVending MachinesMassage ServiceWi-FiSaunaDining Area
Sources
yuru-to.netrtrp.jpJalanmapion.co.jpmfgt.jruro.com
This information may change without notice. Please contact the facility directly for accurate details.
Last updated: 6/11/2026
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Isawa Onsen — overview, spring types, and access
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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