Are winter tyres needed for KAI Alps?

Yes. The property notes that winter tyres are required from December.

How many guests can stay at KAI Alps?

The ryokan has 48 rooms with an occupancy of 1 to 4 guests.

KAI Alps: A 48-Room Ryokan at the Foot of the Japanese Alps

Q: How do I drive to KAI Alps?

From Tokyo, Nagoya or Osaka it is about 60 minutes on National Route 147 from Azumino Interchange. From Niigata or Toyama it is about 90 minutes on National Route 148 from Itoigawa Interchange.

October 17, 2026

KAI Alps (界アルプス) sits at the foot of the Japanese Alps in Nagano Prefecture, in a pastoral setting with a stream running through the courtyard and sunken hearths where food is grilled over the fire. It is a 48-room ryokan, and its common baths are fed by the abundant waters of Kuzu Hot Spring.

Illustrated map of KAI ryokan locations across Nagano, including KAI Alps, Matsumoto and Okuhida

Where KAI Alps is

The property is in the Northern Alps foothills, in the Omachi area of Nagano — the valley below the Tateyama range and the Kurobe gorge. Rooms take 1 to 4 guests, check-in is 14:30 and check-out is 11:00. Expect mountain weather: the season here runs a few weeks behind the cities.

KAI Alps ryokan entrance at dusk, lit lantern posts and the Northern Alps beyond

Getting there

By car

From Tokyo, Nagoya or Osaka: about 60 minutes on National Route 147 from Azumino Interchange.
From Niigata or Toyama: about 90 minutes on National Route 148 from Itoigawa Interchange.

The property offers an exclusive car-rental discount, and — importantly — notes that winter tyres are required from December. This is not a formality: the approach roads climb into the Alps, and a car without winter rubber is a genuine risk from early winter through spring.

KAI Alps snow-covered entrance approach with wooden lantern posts in winter

Illustrated Nagano route map placing KAI Alps between Shinano-Omachi, Hakuba and Matsumoto

The hearth, the stream, the water

KAI Alps is built around two ideas. The first is the irori — the sunken hearth that was the centre of a traditional mountain farmhouse — used here for grilling food over open fire. The second is the water: the common baths draw on the Kuzu Hot Spring, a long-established source at the foot of the range.

Irori sunken hearth at KAI Alps with an iron pot hanging over the fire

The courtyard stream is the connective tissue between them. It is a design that reads as a mountain village rather than a hotel, which is the point.

Open-air bath at KAI Alps enclosed by a wooden slat fence facing the mountains — The open-air bath at KAI Alps, fed by the Kuzu Hot Spring. Photo: Hoshino Resorts.

Japanese-style seating alcove with a low table and a window onto the garden

Why the Northern Alps

This is the base for the Tateyama Kurobe Alpine Route — the snow-wall road that opens from mid-April — and for the Omachi and Hakuba valleys. It also connects cleanly to Matsumoto and the Kiso valley, which is why we usually build it as the mountain middle of a central-Japan route rather than a standalone stop.

Tateyama Kurobe Alpine Route cable car above the Kurobe reservoir — The cable car on the Tateyama Kurobe Alpine Route, above the Kurobe reservoir. Photo: Hoshino Resorts.

Kurobe Dam releasing water on the Tateyama Kurobe Alpine Route — Kurobe Dam on the Tateyama Kurobe Alpine Route, reached from the Omachi side. Photo: Hoshino Resorts.

Courtyard garden with a stone-lined stream, autumn foliage and the mountains behind

Frequently asked questions

What is the nearest interchange to KAI Alps?

Azumino Interchange — about 60 minutes on National Route 147. From the Japan Sea side, Itoigawa Interchange is about 90 minutes on Route 148.

Do I need winter tyres?

Yes, from December. The property states this explicitly, and the surrounding roads are mountain roads.

How many guests per room?

1 to 4 guests, across 48 rooms.

Planning a Northern Alps trip around it

KAI Alps suits a route that runs Matsumoto — Omachi — Tateyama, with the ryokan as the warm middle. Every itinerary we build is designed from scratch around your dates and your group; there is no fixed departure and no group to join: have a Nagano itinerary designed for you — free, no obligation.