Reviving Mountains and Hometown: Aso Uchinomaki Onsen Sozankyo

Name: Reviving Mountains and Hometown: Aso Uchinomaki Onsen Sozankyo
Address: 〒869-2301 Kumamoto Prefecture, 145-1 Uchinomaki, Aso City,, 145-1 Uchinomaki, Aso City, Kumamoto Prefecture, 869-2301, Japan
Telephone: +81-967-32-0515
Price range: 2 people for ¥75,460-

Kumamoto Prefecture／Onsen Areas Around Mt. Aso

A 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

(1)

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Facilities and Services

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Hot spring
Room with Open-Air Bath

Open-air bath / Free-flowing hot spring / Large public bath / Private bath

IN	15:00～19:00
OUT	11:00
Number of rooms	19 rooms
Pet	Not allowed
Your child	Permitted

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Suite Room with Semi-Open-Air Bath, 96 sqm

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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.

Room

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

Bath

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

Meals

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	Hours: 7:30–9:00 With the wish to “share the passion of Aso’s producers,” the third-generation president of Sozankyo personally negotiated to create our signature “New Ryokan Breakfast.” Please enjoy this special morning meal.
Your child	You can stay.
Room service	Not available
Common amenities	○ Shampoo · conditioner ○ Body soap · soap ○ Towel · Bath towel × Body towel · sponge ○ Toothbrush set × Comb · Brush ○ Shower cap ○ Hair dryer ○ Shaving × Shaving Gel/Foam × Bath additives ○ Yukata × Nightwear × Bathrobe × Slippers ○ facial cleanser × Toner × Lotion × Makeup remover × Cotton swab × Cotton × Clothing deodorizing spray ○ Refrigerator × Minibar ○ Electric kettle ○ Tea set (free) ○ Television ○ Safe × Scale × Trouser press × Free morning edition × Pay-per-view broadcast × Satellite broadcasting × Video on Demand × Radio × CD player × DVD player × Blu-ray player × Speakers for portable audio × In-room PCs and tablets
Facilities and Features	○ Hot spring ○ Rooms with open-air baths available ○ Open-air bath ○ Free-flowing hot spring ○ Large public bath ○ Private bath × Sauna × Ganbanyoku (rock bathing) × Within a 5-minute walk from the station × Within a 5-minute walk to the convenience store. × Indoor pool × Outdoor pool × Pet-friendly × Spa facility × Fitness × Free shuttle service × Shuttle Service (Paid) × Room service × Room Service Available 24 Hours × Barrier-free × Childcare services
Esthetic Massage	None
Fitness gym	None
Public Bath	The number of Public Bath 2 Business Hours 15:00~10:00 Hot spring Available Free-flowing Available Milky hot spring water None Additional Information 100% natural hot spring Remarks You can enjoy the Onsen all night, from check-in to check-out.
Open-air bath	The number of Open-air bath 2 Business Hours 15:00~10:00 Hot spring Available Free-flowing Available Milky hot spring water None Additional Information (Heating) Remarks Partial heating is provided only during the winter season.
Private bath	The number of Private bath 2 Business Hours 15:00~24:00 Hot spring Available Free-flowing Available Milky hot spring water None Additional Information (Heating) Remarks Guests staying at the Accommodation may use this service free of charge. Please make a Reservation at check-in.
Room with Open-Air Bath	Hot spring Available Free-flowing Available Milky hot spring water None Additional Information 100% natural hot spring Remarks The in-room open-air bath is a semi-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" In some facilities, heating or adding water for temperature adjustment may be performed. Additionally, please note that in some parts of the facility, the hot spring water may not be free-flowing from the source. For more details, please contact each facility.
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.*

2.67
golf旅人
Date Posted: 1/5/2026
Unfortunately.
Since it's the end of the year, I decided to relax and reserved a suite. The room was spacious and nice, but the time-specified lounge lacked snacks, and the meals were cold, which was very disappointing. Especially the horse sashimi sushi; the rice was too cold...

Access Information

Address
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
Look at the map
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.

Reviving Mountains and Hometown: Aso Uchinomaki Onsen Sozankyo

Reviews

Facilities and Services

Photo

Room

Plan

Introduction of the Accommodation

Facilities and Equipment of Accommodation

Basic Information

Reviews

Unfortunately.

Access Information

Frequently Asked Questions

Please provide information about Open-air bath.

What are the qualities and benefits of the hot spring water?

What kind of facilities and features are available?

I would like to know the access information.

Is parking available?

Please provide information about Private bath.

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