黒川温泉から車で5分 阿蘇の森に佇む飛瀬温泉「天河山荘(てんがさんそう)」 公式サイト│English
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Welcome to Tengasanso
Just seven groups of guests stay per day. All rooms are detached structures that have indoor baths with water flowing directly from the hot spring source.

Both dinner and breakfast are served in private rooms with an emphasis on seclusion.
Spend some quiet time with your family or loved one.

There is a cable car installed just for the outdoor bath with a view.


Because we want everyone to be able to bathe in the outdoor bath and enjoy the scenery and nature, we installed a cable car to the outdoor bath with a view. You’ll be full of anticipation wondering just what kind of scenery awaits. Why not give it a try?

Each guest room has a terrace overlooking the forest, so you can experience the nature of Aso with the people who are important to you without leaving your room. Relax and enjoy your stay until the 11 am check-out time.

Each guest room has a terrace overlooking the forest, so you can experience the nature of Aso with the people who are important to you without leaving your room. Relax and enjoy your stay until the 11 am check-out time.

You can eat your dinner and breakfast in a private dining room. Have a wonderful meal in a private space.

One group per day —Villa with hot spring bath and jaccuzi is the first-rate luxury in the forest.

This guest room has different check-in and check-out times, room facilities, amenities and meals from the other rooms.

Private annex Ruri Capacity: 2 adults
Check-in from 3 pm / Check out by 12 pm

-Facilities-
1F: Dining kitchen / sofa / Japanese hearth area / private dining room / wooden terrace / outdoor bath with jacuzzi / indoor bath / toilet / bathroom
2F: Double bed / recliner / dressing table

-Equipment-
Air conditioner / air purifier / refrigerator / speaker / 2 TVs / kitchen / coffee machine / hair dryer / fan / insect repellent / lantern

-Amenities-
Yukata / Samue / bath towels / face towels / shampoo / conditioner / body soap / makeup remover / face cleanser / face pack

Standard room

A brief interlude in an ample space with Japanese stillness and nature-filled scenery

The Tengasanso guest rooms that connect to the corridor from the lobby are all separate structures. There are two types: a 10 mat Japanese-style room plus an 8 mat Japanese-style room type, and a Japanese/Western-style room with two double beds plus an 8 mat Japanese-style room type. Both have spacious arrangements of two connected rooms.

Japanese/Western-style room

Japanese-style room

All rooms have indoor private hot spring baths

In addition to your room’s hot spring bath, there are two baths with exceptional views.


Charmed by this location where a high-quality hot spring water wells to the surface, we opened as Tobise Onsen.
Enjoy this copiously flowing hot spring to your heart’s content.

There are two private baths with exceptional views at the summit for exclusive use by one party at a time. They are at the highest elevation point at Tengasanso, and you can enjoy the grandeur of Aso’s nature from inside a bathtub.

Details on exclusive-use private baths with exceptional views (two locations)

Use these baths freely. No reservation is required.

Use the cable car to the bath with an exceptional view freely.
Water type: Low-alkalinity, simple thermal hot spring, sulfate spring
Effective for: bruises, neuralgia, bad circulation

We use select, top-quality Kumamoto ingredients and locally grown, fresh ingredients.


Tengasanso insists on using locally grown, delicious and seasonal ingredients.
We serve foods only available here, including vegetables freshly picked every morning and delivered by a farmer we contract with, home-grown rice, and the highest-grade brand beef among Kumamoto Japanese black beef.

Example dinner
Carefully selected meat, horse sashimi and other mountain hamlet delicacies.

Example breakfast
A warm Japanese breakfast - We carefully prepare side dishes that go well with a freshly cooked, home-grown rice.

A private dining room with a sunken kotatsu
You can eat your dinner and breakfast in a private dining room. Have a wonderful meal in a private space.

Tobise Onsen Tengasanso

There are signs along Route 442, which leads to Kurokawa Onsen.

Tengasanso is right next to Kurokawa Onsen.
Look for the sign along the main street. We can pick you up or drop you off at the Kurokawa Onsen bus stop. Let us know in advance if you need to be picked up or dropped off.

By car

Tengasanso is five minutes by car from Kurokawa Onsen.

-From Fukuoka-
1 hour 20 minutes by car from the Hita Interchange on the Oita Expressway traveling in the direction of Aso (on National Route 442)

-From Kumamoto-
Travel in the direction of Aso (on National Route 57) from the Kumamoto Interchange on the Kyushu Expressway.
Turn left midway in the direction of Aso.

-From Oita-
One hour by car from the Yufuin Interchange on the Oita Expressway via the Yamanami Highway.