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- Reviving Mountains and Hometown: Aso Uchinomaki Onsen Sozankyo
Reviving Mountains and Hometown: Aso Uchinomaki Onsen Sozankyo
Kumamoto Prefecture/Onsen Areas Around Mt. AsoA Ryokan where the spirit of hospitality lives on
Soft sunlight streams through the courtyard, bringing morning to a quiet room untouched by sound. Shadows of leaves dance on the washi paper sliding doors, and the gentle sound of water poured into a tea kettle signals the beginning of hospitality. Nestled in Uchimaki, a hot spring town surrounded by the majestic outer rim mountains and offering breathtaking views of Aso's Five Peaks throughout the seasons. Sozankyo is a traditional accommodation that embodies the charm and atmosphere of this historic hot spring town. Experience heartfelt hospitality unique to a ryokan, authentic onsen baths, and cuisine crafted with carefully selected ingredients. We present dishes prepared with seasonal ingredients and blessings from Aso, each served with genuine care.
Reviews
Facilities and Services
See All- Hot spring
- Room with Open-Air Bath
| IN | 15:00~19:00 |
|---|---|
| OUT | 11:00 |
| Number of rooms | 19 rooms |
| Pet | Not allowed |
| Your child | Permitted |
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Introduction of the Accommodation

The Spirit of Sosan Village
We invite our guests visiting Aso to enjoy locally produced ingredients, experience the preserved natural environment, feel the blessings and warmth of the land, and leave feeling rejuvenated. As a home away from home nestled at the foot of Aso, Sozankyo strives to provide "time" and "space" that refreshes every guest, ensuring they return home revitalized after their stay with us.

We offer Rooms that combine the charm unique to a traditional Ryokan with modern renovations for added comfort.

This is an Onsen where you can experience the blessings of nature that can only be enjoyed at a genuine Onsen.

Featuring the blessings of Aso and seasonal ingredients, each dish is prepared with heartfelt care.
Facilities and Equipment of Accommodation
- The room
- Hot Springs & Baths
- Meal
Basic Information
| Taxes | *An additional Hot Spring Tax of JPY 150 will be charged separately.* |
|---|---|
| Card information | VISA / MASTER / JCB / AMEX / DINERS |
| Pets | Not allowed |
| Breakfast | |
| Your child | You can stay. |
| Room service | Not available |
| Common amenities |
|
| Facilities and Features |
|
| Esthetic Massage | None |
| Fitness gym | None |
| Public Bath |
|
| Open-air bath |
|
| Private bath |
|
| Room with Open-Air Bath |
|
| Spring quality and benefits | Neutral / Sodium, Magnesium, and Calcium Sulfate Onsen (Mild Hypotonic High-Temperature Onsen) Chronic constipation, arteriosclerosis, hypertension, gallstones, jaundice, hepatitis, gout, diabetes ※Regarding the notation of "Gensen Kakenagashi" |
| Sauna | None |
| Hot stone spa | None |
Reviews
The overall facility score is not displayed because the required number of reviews has not been reached.
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
- 2.67golf旅人Date Posted: 1/5/2026
Access Information
Kumamoto Prefecture145-1 Uchinomaki, Aso City
TEL:+81-967-32-0515
[By Car] Kumamoto IC → Route 57 → via the Northern Restoration Route → Uchimaki Onsen
[Public Transportation] JR Aso Station → bus bound for Uchimaki Onsen → Shokokai-mae bus stop → 2-minute walk
- Parking Information
- Fee
- Free for guests
- Parking time
- 3:00 PM–10:00 AM the next day
- Parking space
- No restrictions
- Number of parking spaces
- 25 cars available outdoor
- Valet service
- Unavailable
- Pickup and drop-off information
- Unavailable
Frequently Asked Questions
Please provide information about Open-air bath.
・Business Hours: 15:00~10:00 ・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: (Heating) *Partial heating is provided only during the winter season.*
What are the qualities and benefits of the hot spring water?
The spring quality and efficacy of the hot spring are as follows. ・Spring quality: Neutral / Sodium, Magnesium, and Calcium Sulfate Onsen (Mild Hypotonic High-Temperature Onsen) ・Spring efficacy: Chronic constipation, arteriosclerosis, hypertension, gallstones, jaundice, hepatitis, gout, diabetes
What kind of facilities and features are available?
There are the following facilities and features. Hot spring・Rooms with open-air baths available・Open-air bath・Free-flowing hot spring・Large public bath・Private bath
I would like to know the access information.
[By Car] Kumamoto IC → Route 57 → via the Northern Restoration Route → Uchimaki Onsen [Public Transportation] JR Aso Station → bus bound for Uchimaki Onsen → Shokokai-mae bus stop → 2-minute walk
Is parking available?
・Fee: Free for guests ・Parking Hours: 3:00 PM–10:00 AM the next day ・Parking space: Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces: 25 cars ・Valet Service: Unavailable
Please provide information about Private bath.
・Business Hours: 15:00~24:00 ・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: (Heating) Guests staying at the Accommodation may use this service free of charge. Please make a Reservation at check-in.
Is an internet connection available?
Connection is possible. ・Wi-Fi is available. For more details, please refer to the room and plan information.
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