Kuju Hossho Hotel
九重星生ホテル
A quiet mountain hotel in Aso-Kuju National Park with panoramic rooms, a tunnel-connected open-air onsen, careful kaiseki meals and easy access to Chojabaru and the Mount Mimata trailhead.
A mountain hotel with almost nothing around it
Kuju Hossho Hotel sits high in Kokonoe, inside Aso-Kuju National Park, with Mount Mimata directly behind it. This is not a hotel for nightlife or convenience. There is very little around, and that is part of the point.
We stayed here for two nights around our Mount Mimata hike. It worked extremely well as a base for Chojabaru and the Tadewara Marsh, while still being close enough to drive toward Aso the next day. Aso is about an hour away by car, so it is doable if the priority is a high-quality mountain stay rather than being in a busier town.
The hotel is upscale and was not cheap, but it felt worth it. The building is not new, and it is bigger than it first needs to be; when we were there, not all floors seemed to be in use. But the condition was carefully kept, the atmosphere was peaceful, and there were very few other guests.
Rooms, lobby and service
We stayed in a corner Japanese-style room, and it was one of the most beautiful rooms of the trip. The wide windows looked straight toward the mountains, with tatami, shoji, low tables and heavy wood furniture giving the room a calm, old-fashioned character.
The official room list also includes Western twin rooms and Japanese-Western rooms, and the hotel says all rooms look toward the Kuju mountains. There is also a wood deck terrace, although we did not use it: the day before we had climbed Mount Mimata, and the day after it snowed.
The lobby had the same sense of scale as the rest of the hotel: large and slightly formal, with massive cedar wood tables and chairs. It felt older rather than new, but not neglected. The service was attentive in a low-key way, and the owner or manager invited us for coffee and asked how we had found the place, saying that foreign guests rarely came there.
The onsen reached by tunnel
The onsen is the heart of the stay. A tunnel connects the hotel with the separate open-air bath area, so you can move between the main building and the hot spring without stepping fully outside.
The outdoor baths look directly toward the mountains, with steam, pale blue water, rocks, wooden tubs and open sky. It is the kind of onsen where the setting matters as much as the water.
It felt especially good in the evening and again after the hike.
Dinner and breakfast
Book dinner and breakfast if you stay here; the food was one of the main reasons the stay worked so well.
Dinner was a kaiseki-style meal with many small plates brought out one after another. The presentation was careful, with beautiful plates, cutlery and seasonal details, and even the chopsticks were engraved with our names. It felt personal without becoming stiff.
Breakfast was also substantial, with rice, soup, fish and small side dishes. After the unhurried dinner service and the almost empty hotel, it reinforced the feeling that this was a slow mountain stay rather than just a practical overnight stop.
For Kuju hikes, and Aso too
Kuju Hossho Hotel is ideal if you want to explore the Kuju range from a solitary base. Chojabaru Visitor Center, Tadewara Marsh and the Mount Mimata trailhead are close, and Makinoto Pass also fits naturally into this area.
It can also work as a base for Aso. The point is not town convenience, but a rare kind of mountain stay: calm, almost completely removed from everything, with onsen, good food and the Kuju landscape around you.
For lunch nearby, Kuju Andante (くじゅうアンダンテ) is a useful pizza stop near Chojabaru Visitor Center.
Good to know
- Best for
- Access
The hotel is best accessed by car.
- Onsen
Four spring types and 16 baths — sulfur, simple, acidic green vitriol and cold mineral spring — indoor and open-air, plus a sauna. Day visitors can use the onsen too.
- Location
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Kokonoe, Oita Open in maps (external link)
- Details
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