Japan Onsen Atlas温泉アトラス
Hillside hamlet and rice terraces below a cone-shaped mountain
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Kyushu & Okinawa · Onsen district (group of areas)

Waitasenkyō

わいたせんきょう · わいた温泉郷

Kumamoto

Status unconfirmed100 Onsen to Know Japan — No. 92
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Official classification

Spring type (therapeutic classes)

Chloride springSimple hot springSulfur spring

Official spring-type name (as recorded)Varies by hamlet: chloride, simple and simple sulfur springs (Hourei-no-yu is a sodium chloride spring)

Source temperature
Unconfirmed
pH
Unconfirmed
Flow rate
Unconfirmed
Radon
Unconfirmed

Appearance & feel

Water colour · Feel

BlueMilky white

Colour and feel are listed only where a source states them. They vary by day and by bath.

What makes it special

At the foot of Mt Waita, the 'Fuji of Oguni', geothermal steam jets up all over the hamlets, and the baths are private family rooms refilled fresh for every group.
Why?

The Waita Onsen Association and Kumamoto's official tourism site describe six bathing hamlets powered by abundant geothermal heat at the foot of Mt Waita, known for steam cooking boxes and coin-timer private baths with water flowing 24 hours.[1][2]

Facilities in this area

Facilities come from the register (Wikipedia, OpenStreetMap, official sites). Those marked "natural spring unconfirmed" are listed on the basis of their name only.

Day-use bath · Open

Hourei-no-yu

Day-use bathing
Yes
Fee
¥600checked 2026-10-09
Hours
露天大浴場・檜露天 8:00–19:00 / 岩露天・岩内風呂 24時間checked 2026-10-09
Official site
Baths2
TypeGenderSourceBath temperatureFree-flowingAdded waterHeatedRecirculatedDisinfected
Open-air bathSeparateHagenoyu, Hourei-no-yuUnconfirmedUnconfirmed[4]Unconfirmed[4]Unconfirmed[4]Unconfirmed[4]Unconfirmed[4]
Private bathUnconfirmedHagenoyu, Hourei-no-yuUnconfirmedUnconfirmed[4]Unconfirmed[4]Unconfirmed[4]Unconfirmed[4]Unconfirmed[4]
Day-use bath · Open

Yuka (Takenoyu Jigokudani Onsen)

Day-use bathing
Yes
Fee
¥700checked 2026-10-09
Hours
8:00–22:00checked 2026-10-09
Official site
Baths2
TypeGenderSourceBath temperatureFree-flowingAdded waterHeatedRecirculatedDisinfected
Open-air bathSeparateTakenoyu JigokudaniUnconfirmedYes[3]Unconfirmed[3]Unconfirmed[3]Unconfirmed[3]Unconfirmed[3]
Private bathUnconfirmedTakenoyu JigokudaniUnconfirmedYes[3]Unconfirmed[3]Unconfirmed[3]Unconfirmed[3]Unconfirmed[3]
Ryokan (inn) · Open

Yasuragi-no-yado Matsuya

Day-use bathing
Unconfirmed
Fee
Unconfirmedno check date
Hours
Unconfirmedchecked 2026-10-09
Official site
Baths1
TypeGenderSourceBath temperatureFree-flowingAdded waterHeatedRecirculatedDisinfected
Private bathUnconfirmedAlkaline simple sulfur springUnconfirmedUnconfirmed[1]Unconfirmed[1]Unconfirmed[1]Unconfirmed[1]Unconfirmed[1]

Getting there

Public transport unconfirmed

By public transport you need a highway bus plus a taxi. From Fukuoka (Nishitetsu Tenjin) take the Kyushu Sanko bus for Kurokawa Onsen to Yu Station (about 2 hr 50 min), then a taxi (about 20 min). From Kumamoto Station the Kyushu Odan bus reaches Kurokawa Onsen in about 2 hr 45 min, then a 20-minute taxi. By car, about 30 minutes from Kokonoe IC on Route 387.

Through the year
From late December to late February, snow can make tyre chains necessary
Checked
2026-10-09
Show on mapOpen in Google Maps

About the water

Each hamlet has different water. The prefectural tourism site lists chloride and simple springs, and calls Hagenoyu a simple sulfur spring. Hourei-no-yu is a white-blue sodium chloride spring said to be richer than its neighbours in metasilicic acid, a natural moisturiser; the inn warns it can leave hair feeling squeaky. Colour varies from bath to bath.

Indications (as posted on the analysis)

Skin beautification, cuts, burns, chronic skin conditions, sensitivity to cold, fatigue (as listed by Hourei-no-yu)

Indications are an official statement based on the water analysis, not a guarantee of treatment. They are kept separate from opinions.

SourceSource temperaturepHRadonChecked
Hourei-no-yu, HagenoyuUnconfirmedUnconfirmedUnconfirmedno check date

Three things not to miss

Rock-lined outdoor bath
Photo information
おぉたむすねィく探検隊 (Commons uploader) CC BY-SA 2.5 View original page
01

Private baths refilled for every group

Day-use bathhouses in Hagenoyu and Takenoyu At Hourei-no-yu (Hagenoyu) a rock indoor bath is ¥1,000 an hour and a rock open-air bath ¥1,500, both open 24 hours; the cypress open-air bath is ¥2,000 (8:00–19:00). At Yuka in Takenoyu, detached private baths cost ¥1,500–2,500 for 50 minutes (up to four people).

Because each bath is yours alone, you can go solo without a second thought, and the water is always fresh.[3][4]

White steam rising between wooden buildings
Photo information
おぉたむすねィく探検隊 (Commons uploader) CC BY-SA 2.5 View original page
02

Geothermal steam cooking

Hourei-no-yu, Yuka, Kunugi-yu and others Spring steam cooks vegetables, eggs and meat. At Hourei-no-yu bathers can use the steam boxes free and borrow steaming baskets at no charge.

Bathing and cooking on the same underground heat is the essence of Waita.[5][4]

Hillside hamlet and rice terraces below a cone-shaped mountain
Photo information
おぉたむすねィく探検隊 CC BY-SA 2.5 View original page
03

White-blue water and Mt Waita views at Hourei-no-yu

Hagenoyu, 2917 Nishizato, Oguni Naturally gushing water in a milky white-blue. The large open-air bath is ¥600, 8:00–19:00, and there is an inn on site.

The inn says this white-blue colour is found nowhere else nearby.[4]

The story

Six bathing hamlets under Mt Waita

Mt Waita is a cone-shaped peak on the Kumamoto–Oita border, nicknamed the Fuji of Oguni and the Fuji of Kusu. The hot springs on its slopes, Hagenoyu, Takenoyu, Jigokudani, Yamakawa, Asozuru and Suzugatani, are known together as the Waita spa district. Hagenoyu sits on a plateau at 760 m with four inns and day-use private baths.[1][2][6][8]

When the ground is your kitchen

In Waita, scalding steam from the ground is used for cooking. Day-use bathhouses have steam boxes too: at Hourei-no-yu bathers use them free, and some bring oysters or crabs. Hagenoyu is known for whole chicken steamed over geothermal vents.[5][6]

The Kyushu-style private bath

Most baths in Waita are coin-timer private rooms: hot water fills the tub for you, then is drained and replaced for the next guests. The flow is so strong that a tub fills in minutes. They suit families, but just as well a solo traveller who would rather bathe alone.[5][3][4]

Going solo

Solo stay unconfirmedUnconfirmed
Weekend / peak restrictionsUnconfirmed
Where to eat dinnerUnconfirmed
Private bathYes

checked 2026-10-09

Through the year

Recommended months

JanFebMarAprMayJunJulAugSepOctNovDec

Months open

JanFebMarAprMayJunJulAugSepOctNovDec

"Recommended" and "open" are recorded separately. Check the season for seasonal springs.

Dec · Jan · Feb — The colder it is, the more dramatic the steam; snow may require chains

Oct · Nov — Yuka's open-air bath has autumn colour and winter snow, per the prefectural tourism site

Food, culture & experiences

Available / bookable

Climbing Mt Waita

A beginner-to-intermediate climb with 360-degree views from the top[1]

Available / bookable

Nabegataki Falls

A waterfall the onsen association lists among nearby sights[1]

Available / bookable

Kurokawa Onsen

The famous spa town where highway buses stop[6][7]

About 20 minutes by car

Editors' guide

A mountain spa you reach by car or taxi. Start with the white-blue open-air bath at Hourei-no-yu, steam some vegetables and eggs, then end the day in a private bath in the woods at Takenoyu. Be ready for snowy roads in winter.

The "editors' guide" above is written by the editors from sources; it is not a visitor's opinion.

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Visitor reviews

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Onsen areas in this district

Onsen areas nearby

Unconfirmed & notes

  • Local bus access, water treatment at each facility and solo stays are unconfirmed
  • Official details for Kunugi-yu, Sansui and others could not be checked

Register sources

Data status

Name & locationPublishedCoordinatesPublishedSpring typePublishedPhotosPublishedFacilitiesPublishedVisiting info (dated)PublishedEditorial articlePublished

Updated 2026-10-09

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