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KAI Hoshino Resorts KAI Alps

KAI Hoshino Resorts KAI Alps

Located 3 hours by train from Tokyo, KAI Alps is a hot spring ryokan situated by Omachi Hot Spring in northern Nagano—the gateway to the northern Japanese Alps. Classical Japanese architectural elements provide comfort even during heavy snow, making it a perfect place which to experience Nagano's countryside, the nature of the Alps and the ski slopes of nearby Hakuba.

  • 30 min. From Hakuba
  • English-speaking staff
  • Best Rate Guarantee
  • Free Wi-fi
  • Outdoor bath
  • Half-board

What is KAI?

What is KAI?

Japan’s hidden luxuries—at your fingertips

KAI is a leading brand of upscale boutique hot spring ryokans. Every establishment offers a contemporary take on the traditional Japanese inn, providing unique, location-specific experiences. From exclusive activities to specialty suites, KAI is an invitation to immerse yourself in the rich diversity of Japanese culture.


Rooms are standalone units that come with a variety of options, including a private bath, annex, and loft. Each room is furnished with sofas, low beds, and other contemporary amenities for ensuring a comfortable alpine vacation.

KAI Signature Rooms

KAI Signature Rooms incorporate elements of regional craft cultures in their design. At KAI Alps, all 48 rooms are Signature Rooms decorated with custom-made paper lanterns, cut-out artwork by local artists, and other objets d'art that depict the Japanese Alps.

Room types (4)

KAI Amenities

100% flax yukata

These casual kimono have been meticulously woven to provide cooling in the summer and heat in the winter.
*We will prepare it for those who wish. Please let us know when you check in.

Wrapping cloth

In Japan, objects are traditionally carried around in a makeshift bag formed from a sheet of cloth, known as furoshiki. Guests are invited to use these cloths to carry their belongings around the premises.

Luxury mattresses

Our own brand mattresses have been designed to provide proper support to the body while also being soft enough to sink into, allowing for undisturbed sleep.

Other amenities

Shower booth / TV / phone / electric kettle / fridge / safe box / hair dryer / toilet with bidet functions / air purifier with humidifying function


Meals feature a variety of regional dishes that incorporate plenty of seasonal ingredients.


Dinners consist of multi-course kaiseki meals that include visually pleasing dishes made with seasonal ingredients. Guests may choose between standard and special.


As Omachi was one of the station towns located on the historic "Salt Road" trade route connecting the Sea of Japan to the inland, breakfast includes ingredients from both the sea and the land. A rich, mushroom-based miso soup is paired with "Shiomaru Squid", a special squid dish invented in order to preserve the seafood as it was taken to the inland.

  • No Western meals are served, either at dinner or breakfast.
  • Standard prices include half board.
  • Allergy Information

Hot spring

Bath halls feature indoor and outdoor baths, the latter of which offer views of larch forests and mountains along with a relaxing warmth that is balanced with the crisp mountain air.

Yuagari Lounge

Guests are invited to cool off here after a dip in the bath while sipping on a refreshing beverage inspired by the local culture.


Same day reservations available at the front desk.

KAI Cultural Discovery

Every KAI establishment offers a selection of free activities designed to introduce guests to Japan's regional cultures. At KAI Alps, guests are invited to sit around an irori—a traditional sunken hearth—and enjoy a variety of grilled snacks, heated regional sakes, and traditional games for a genuine rural Japan experience.

Irori fireplace experience

An irori in the reception building offers a chance to experience what life was once like in rural Japan. In the winter, guests may don traditional snowshoes for walks in the courtyard.



The stage for the 1998 Winter Olympics, Hakuba is a popular ski resort that is famous for its high-quality powdered snow. Everyone from families to pro skiers visits Hakuba's slopes during the season.

Tateyama Kurobe Alpine Route

This sightseeing route is a true feast for the eyes. It offers a stunning view of the Japanese Alps, as well as stretches that pass between majestic walls of snow in the winter, the bird-watching mecca of Bijodaira, and aerial views from a cable car..


Check-in 15:00
Check-out 12:00
Rooms 48
27 Japanese-style Rooms / 19 Japanese-style Rooms with Loft / 8 Rooms with Outdoor Bath / 2 Japanese-style Suites
Parking 38
Facilities Front Desk / Shared baths halls / Yuagari Lounge / Restaurant / Travel Library / Sunken hearth / Ski storage and drying room / Courtyard / Shop

Travel Library

Every KAI establishment features a library consisting of books on the area's history, culture, crafts, and geography, as well as novels that spur a sense of adventure. Complimentary refreshments are also served.

Sunken hearth

In the past, Japanese homes were built around iroris—sunken hearths that served as both a kitchen and a warm place for the homeowners and their guests to gather around. The tradition continues at KAI Alps.


A stream runs through this central courtyard, which is decorated with cherry blossoms and verdant greens in warmer seasons, and with traditional snow domes known as kamakuras in the winter.

  • Note* Cherry blossoms : In late April / Kamakura : In early Feburary

KAI Alps

2884-26 Taira, Omachi,
Nagano 398-0001