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Kosugian

Kumamoto Prefecture／Oguni Town

Spend time away from everyday life amid the rugged, majestic natural beauty of Aso.

Oguni Town is 80% forest, surrounded by abundant greenery. At Kosugian, nestled in this quiet mountain town, you can enjoy a soothing stay in a peaceful setting. For dinner, we offer dishes featuring Kumamoto’s prized Akaushi beef to your heart’s content. To melt away the day’s fatigue, enjoy one of four types of natural free-flowing Onsen baths available for private use. You can use all four baths—each different in size—free of charge, and relax both body and mind as you soak. With a well-developed road network centered around Aso, it is also an ideal base for scenic drives and touring. Come experience harmony with nature and spend a special time unlike your everyday life.

Reviews

(5)
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Facilities and Services

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  • Hot spring
Free-flowing hot spring / Private bath / Free shuttle service
IN15:00～18:00
OUT11:00
Number of rooms7 rooms
PetNot allowed
Your childPermitted

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Introduction of the Accommodation

Notice from the Accommodation

  • [Up to JPY 10,000 Off per Guest] Notice Regarding the “Aso Recovery Discount” Oguni Town Accommodation-Only Vouchers

    Starting today, sales of the “Aso Recovery Discount: Oguni Town Accommodation-Only Vouchers” will begin.

    ■ About the Oguni Town Accommodation-Only Vouchers

    〇 Eligible stay period: Stays from Monday, September 7, 2026 through Wednesday, September 30, 2026

    〇 Up to JPY 10,000 off per person
    ・You can purchase vouchers worth JPY 10,000 (10 × JPY 1,000) for JPY 5,000.
    ・Purchase limit: up to two sets per person (JPY 20,000).
    ・After purchasing the vouchers, please bring them to Kosugian and we will apply the discount to your Accommodation fee on the spot.

    ※※ Important Notes ※※
    ・Vouchers are available in limited quantities and may sell out. Please consider purchasing early.
    ・A Reservation must be made at least two days before your stay date.
    ・Vouchers cannot be used for food and beverage charges. Discounts cannot exceed your Accommodation fee.

    　For details, please see the URL below (ASO Oguni Tourism Association website).
    https://ogunitown.info/2026/09/04/%EF%BC%85e3%EF%BC%85...

    ● From October 1, Kumamoto Prefecture’s Kyushu Recovery Support Discount has been confirmed.

    Take this opportunity to escape everyday life and immerse yourself in nature at “Sansou Kosugian.”

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS
Pets
Not allowed
BreakfastThere is no information about breakfast.
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
Private bath
The number of Private bath
4
Business Hours
15:00~10:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring
Remarks
Private Open-Air Baths: 1 Private Baths: 3 Bathing Hours: 15:00–23:00, 6:00–10:00 the next morning Reservation available If available, you may use the bath privately at your convenience. *Limited to 50 minutes per group.
Spring quality and benefits

Calcium and sodium sulfate spring

Neuralgia, arteriosclerosis, skin conditions

※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.

SaunaNone
Hot stone spaNone
Others Discover

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.*

Access Information

Address
Kumamoto Prefecture1517-1 Kitasato, Oguni-machi, Aso-gun
TEL：+81-967-46-6700

Oita Expressway: Exit at Kusu IC, then drive about 40 minutes toward Oguni via National Route 387 / About 90 minutes by car from Kumamoto Airport / 20 minutes by car to Kurokawa Onsen

Parking Information
Fee
Free for guests
Parking time
3:00 PM–11:00 AM the following day
Parking space
No restrictions
Number of parking spaces
10 cars available outdoor
Valet service
Unavailable
No Reservation required
*Only standard-sized cars can be parked.*

Pickup and drop-off information
Available (Free)Mountain Lodge Kosugian ~ Kurokawa Onsen Bus Stop, etc.

Frequently Asked Questions

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