Kurokawa Onsen Ryokan Nanjoen
Reference price as of October 24, 2026 (stay 2026-11-14). US$ is an approximate conversion from yen. Check the booking site for actual rates.
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Rakuten Travel rating 4.66 out of 5 (726 reviews), a high rating. A ryokan in the Kurokawa Onsen hot-spring village, where the onsen water flows straight from the source, with a communal bath and guest rooms that have an open-air bath. Japanese-style tatami rooms are available too, and families stay here as a place where they can relax calmly even with small children.
Kids Facilities
Private-hire baths Hana and Hikari
Private-hire baths Hana and Hikari
- paymentsPrice:Free for guests
Two family baths: Hana, built of hinoki cypress, and Hikari, built of stone. Each is sized for about two people to use at a relaxed pace, and both have shower facilities. Staying guests can use them free of charge 24 hours a day, from check-in to checkout, so you can bathe together with a small child without worrying about other guests.
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Overview
Kurokawa Onsen Ryokan Nanjoen is a ryokan in the center of Kurokawa Onsen in Minamioguni-machi, Kumamoto. It has 12 rooms in total: 3 rooms with a semi-open-air bath, 7 regular rooms and 2 rooms in the annex. Every room is floored in tatami and has a broad window-side space with a single-slab wood counter. The open-air bath Hoshi no Yu and the semi-open-air bath Tsuki no Yu alternate between men and women each day, and there is also Akane no Yu, an indoor bath for staying guests only. Staying guests can use the family baths Hana and Hikari free of charge 24 hours a day, which suits families who want to enjoy the onsen outside their room with a small child without worrying about other guests.
Rooms
Standing on high ground in the center of Kurokawa Onsen, Nanjoen has 12 rooms in total: 3 rooms with a semi-open-air bath, 7 regular rooms and 2 rooms in the annex. Every room is floored in tatami and has a broad window-side space with a private single-slab wood counter. There is one room with an onsen bath fed straight from the source on each of the 1st, 3rd and 4th floors. Each has an 8-tatami Japanese-style tatami room, a broad window-side space, a 6-tatami bedroom with 2 beds and an in-room bath fed straight from the source, and takes 2 to 5 guests (for 1 guest, or for more than 5, please inquire by phone). Standard rooms (a 7.5- to 10-tatami Japanese-style tatami room plus a broad window-side space) take 2 to 4 guests, and annex standard rooms (a 12-tatami Japanese-style tatami room plus a 5-tatami broad window-side space) take 2 to 6 guests, so you can choose a room to suit your group size. Smoking has not been allowed inside guest rooms since January 2025.
Dining
Meals are served in three dining areas: Mokuran on the 2nd floor, Suo on the 3rd floor and Oribe on the 4th floor. The kaiseki cuisine (a traditional multi-course meal) makes the most of local ingredients, including produce from Aso, and both dinner and breakfast are served at counter or table seating with a sense of privacy. Breakfast starts at 8:15 a.m.
Baths and Onsen
There are 6 baths. The open-air bath Hoshi no Yu and the semi-open-air bath Tsuki no Yu alternate between men and women each day, and the spring water is a sodium sulfate-chloride spring. Hoshi no Yu is divided into three tubs that look as though they are stacked on top of one another, laid out in tiers so you can take in the mountain scenery. Part of it is a standing bath 140 cm deep, so watch your footing. Tsuki no Yu is a semi-open-air bath that is open along one side; of its two tubs, the nearer one is kept lukewarm so you can warm up little by little. Akane no Yu, the indoor bath for staying guests only, is separated by gender, and there are few steps all the way from the elevator to the changing room, the indoor bath and the semi-open-air bath, so it is easy to get into. The family baths Hana (built of hinoki cypress) and Hikari (built of stone) are private-hire baths for about two people, and staying guests can use them free of charge 24 hours a day.
Family-Friendly Features
The main building has an elevator, and you can walk barefoot all the way from the entrance to your room. Because the family baths Hana and Hikari are private-hire baths that staying guests can use free of charge 24 hours a day, you can bathe together with a small child without worrying about other guests. Part of the open-air bath Hoshi no Yu is a standing bath 140 cm deep, so take care with your footing when bathing with a small child. The Igozaka service entrance, a shortcut to Kawabata-dori in the center of Kurokawa Onsen, is a fairly steep set of stairs and is not suited to strollers.
Places to Play
Just past the entrance gate there is a footbath, free for staying guests. There is also one table-tennis table and one table-tennis machine, which staying guests can use free of charge from 8 a.m. to 10 p.m.
Access
Kurokawa Onsen is in Manganji, Minamioguni-machi, Aso-gun, Kumamoto, a hot-spring village where 30 ryokan are gathered in the mountains. It is about an hour by car from Hita IC on the Oita Expressway. In the shared parking area of the Kurokawa Onsen Tourist Ryokan Cooperative, 12 of the 60 spaces are for Nanjoen and are free to use. The shuttle to the Kurokawa Onsen bus stop is by reservation, and you need to let the ryokan know your arrival time by the day before.
Access & Information
| location_onAddress | 6612-1 Kurokawa, Minamioguni-machi, Aso-gun, Kumamoto 869-2402 |
|---|---|
| directions_carAccess | One hour from Hita IC on the Oita Expressway. |
| trainNearest station | Aso Station |
| local_parkingParking | Parking is available: 12 of the 60 spaces in a shared parking area, free of charge. |
| callPhone | +81-967-44-0553 |
| paymentsCards | VISA, Mastercard |
| languageOfficial site | https://www.nanjoen.com/open_in_new |
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Reference price as of October 24, 2026 (stay 2026-11-14). US$ is an approximate conversion from yen. Check the booking site for actual rates.
Check rates & availability
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Frequently Asked Questions
What ages is Kurokawa Onsen Ryokan Nanjoen best suited to?
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It has facilities that work especially well for babies and toddlers (ages 0 to 2). There is no age limit, and families with children of any age can stay.
Is there parking at Kurokawa Onsen Ryokan Nanjoen?
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Parking: Parking is available: 12 of the 60 spaces in a shared parking area, free of charge.
How do you get to Kurokawa Onsen Ryokan Nanjoen?
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One hour from Hita IC on the Oita Expressway.
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Information on this page was compiled by directly consulting Official website, Rakuten Travel, Jalan (last verified: August 2026). Prices, availability and seasonal operations change. Please check each booking site for the latest information.
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