Right Onsen › Kanagawa › Minamiashigara
Only Yu Hot Spring Resort
4.1★ · 1,464 Google ratings · Minamiashigara, Kanagawa · モダン湯治 おんりーゆー
✓ Day visitors✓ Outdoor bath✓ Sauna
Before you go
Can you bathe here?
Day visitors
✓ YesStated on the facility's website
Hours
10:00–20:00From the facility's listing
Tattoos
? Call aheadNo policy stated in the 38 recent reviews we read or on the facility's website
Price
¥2,400 adultReported by two visitors
How we know this
- Day visitors: The facility is primarily a day-use hot spring that also offers overnight stays, as described in 2026 reviews. · stated on the facility's website, read 2026-09 · 2 visitors, Jul 2026 – Aug 2026
- Price: Weekday admission was 2,400 yen in July 2026 and weekend admission was 2,530 yen in May 2026. · 2 visitors, May 2026 – Jul 2026
The bath
What you’ll find
A quiet forest hot-spring day-use facility in South Ashigara with indoor and outdoor baths, multiple saunas, and lukewarm 38°C alkaline pools, popular for its relaxed atmosphere though admission is relatively expensive.
Bath setup
Outdoor bath
✓ YesReported by two visitors
Sauna
✓ YesReported by two visitors
Cold bath
✓ YesReported by two visitors
Spring water
Spring type
alkaline springReported by one visitor
Source temperature
38°CReported by two visitors
Bath temperature
38°CReported by two visitors
pH
pH 9.5Reported by one visitor
How we know this
- Outdoor bath: Multiple reviewers from 2026 describe a forest-surrounded outdoor bath with lukewarm water around 38°C. · 2 visitors, Apr 2026 – Jul 2026
- Sauna: Reviewers in 2026 describe two saunas, including an outdoor löyly-style sauna and an indoor standard one. · 2 visitors, Jul 2026 – Aug 2026
- Cold bath: Reviewers noted two cold plunge baths using natural spring water, reported in 2026. · 2 visitors, Jul 2026 – Aug 2026
- Spring type: A 2026 review described the facility's own source as a highly alkaline hot spring known for smooth skin feel. · 1 visitor, May 2026
- Source temperature: Reviewers in 2026 described the source water as lukewarm, around 38°C. · 2 visitors, Apr 2026 – May 2026
- Bath temperature: The main outdoor bath is kept at a lukewarm temperature of about 38°C according to 2026 reviews. · 2 visitors, Apr 2026 – May 2026
- pH: A 2026 review cited the facility's own source water as highly alkaline with a pH of 9.5. · 1 visitor, May 2026
Practical
What you need
Towels
✓ IncludedStated on the facility's website
Accessibility
Step-free entrance and accessible parkingFrom the facility's listing. Bath access not confirmed
Facilities
Rest area
✓ YesReported by two visitors
Restaurant
✓ YesReported by two visitors
Lodging
✓ YesReported by two visitors
How we know this
- Towels: stated on the facility's website, read 2026-09
- Rest area: Reviewers in 2026 describe rest areas with reclining chairs and rest rooms with beds. · 2 visitors, May 2026
- Restaurant: The facility has an on-site restaurant serving meals, mentioned in multiple 2026 reviews. · 2 visitors, May 2026 – Jul 2026
- Lodging: The facility offers overnight lodging in addition to day-use bathing, per 2026 reviews. · 2 visitors, Mar 2026 – Aug 2026
Timing
When to go
Quietest Monday around 10:00. Busiest Sunday around 17:00.
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Quiet Busy
Based on Google visit patterns, not a forecast.
Weekly hours
| Day | Hours |
|---|---|
| Monday | 10:00–20:00 |
| Tuesday | 10:00–20:00 |
| Wednesday | 10:00–20:00 |
| Thursday | 10:00–20:00 |
| Friday | 10:00–20:00 |
| Saturday | 10:00–20:00 |
| Sunday | 10:00–20:00 |
Getting there
How to get there
Nearest station
Daiyuzan · Izuhakone Railway · ID122.5 km in a straight line; bus or taxi from the station
Address
1520-1 Hiromachi, Minamiashigara, Kanagawa 250-0121From the facility's listing
Show a driver
モダン湯治 おんりーゆーThe name in Japanese, for a taxi or at the counter
Phone
+81465-72-1126Japanese-speaking. For tattoos or private baths a call is the only sure answer
Website
ashigara-only-you.comOfficial, in Japanese
The map loads only when you ask for it and connects your browser to Google.
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What matters
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Questions
Common questions
Can I visit Only Yu Hot Spring Resort without staying overnight?
The facility is primarily a day-use hot spring that also offers overnight stays, as described in 2026 reviews.
How much does Only Yu Hot Spring Resort cost?
Weekday admission was 2,400 yen in July 2026 and weekend admission was 2,530 yen in May 2026.
