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The Ko-Sōyu, a recreated old public bath in the centre of Yamashiro Onsen, below Beniya Mukayu
The Ko-Sōyu, a recreated old public bath in the centre of Yamashiro Onsen, below Beniya Mukayu · Photo: Maarten Heerlien from Voorschoten, The Netherlands, CC BY 2.0, Wikimedia Commons
The Ko-Sōyu bath, tiled with Kutani porcelain beneath its stained-glass windows
The Ko-Sōyu bath, tiled with Kutani porcelain beneath its stained-glass windows · Photo: Maarten Heerlien from Voorschoten, The Netherlands, CC BY 2.0, Wikimedia Commons

Chosen by Umika

Beniya Mukayu

Luxury ryokan, 16 rooms with private open-air hot spring baths, Relais & Châteaux · Kanazawa and Kaga Onsen

Beniya Mukayu is a ryokan (traditional Japanese inn) with 16 rooms and suites in Yamashiro Onsen, near Kaga in Ishikawa Prefecture. Every room has a private open-air onsen (hot spring) bath facing the forest garden; the inn also has two communal baths with saunas, a spa using medicinal herbs and three libraries. A Relais & Châteaux member, it welcomes children from age 7.

Cherry blossoms and autumn leavesOnsen and hot springsFood and gastronomyArt, architecture and designVillages and countrysideRyokans

Une Clé Michelin

from 1,176 € per night

Japanese Premier Tatami Garden View Room (70 m²), 2 adults, kaiseki dinner and breakfast included, free cancellation up to 22 days before arrival, pay at the hotel (¥208,420 a night), 2-night stay from 13 April 2027. Indicative price, taxes included, to be confirmed with your request.

Public price collected on: Relais & Châteaux (relaischateaux.com), réservation en ligne de l'hôtel — accessed 30 October 2026

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Beniya Mukayu is a ryokan (a traditional Japanese inn where dinner and breakfast are part of the stay) with 16 rooms and suites, set on Yakushiyama hill above the hot spring town of Yamashiro Onsen, in Kaga, Ishikawa Prefecture. It suits couples looking for two or three quiet nights after Kanazawa or Kyoto: every room has its own open-air onsen (natural hot spring) bath facing the garden, and the inn takes children from age 7. It is a Relais & Châteaux member and holds one MICHELIN Key.

A house built around its forest garden

Everything turns towards a forest garden planted around a 300-year-old red pine. All 16 rooms face it, and every one has an open-air hot spring bath looking into the trees. In the shared spaces, three libraries (Main Library, Forest Library and Library Zero) are there for reading, and a piece by designer Kenya Hara, Tsukubai Ho-sun, reinterprets the stone basin where visitors rinse their hands at the entrance to a tea garden.

A stay here is measured in hours rather than sights: check-in at 3 pm, a soak before dinner, a long dinner, another bath at night and again on waking, check-out at 11 am. Groups are limited to six people, which keeps the house quiet.

Choosing a room

The room table gives sizes and beds; here is how the categories differ in practice. All have the open-air bath facing the garden and a shower booth.

  • Sleeping on futons, Japanese-style: the Japanese Premier Tatami Garden View Room (70 m², 4 rooms) has a tatami room (rice-straw mats covering the floor) where futons (mattresses laid on the floor) are rolled out at night, with a wooden terrace and bamboo veranda. It is the only category without beds.
  • A bed, in a Western room: the Western Premier Garden View Room (60 m², 2 rooms) is on the top floor, with a large terrace under a skylight. It is reached by an 18-step stairway, so it is not suited to older guests or anyone with limited mobility.
  • Both at once: the Zen Style Junior Suite (70 m², 2 suites on the garden level) combines a tatami room with a separate bedroom; its open-air bath includes a jacuzzi.
  • Room for four: the six Zen Style Executive Suites (95 to 100 m²), on the 2nd, 3rd and 4th floors, look down over the garden, with a tatami room, bedroom and walk-in closet.
  • The two one-off suites: the Wakamurasaki Suite (120 m²) has a living room with a 3 m lacquered table and faces a mountain cherry tree over 100 years old, so book early for spring blossom; the Byakuroku Terrace Suite (110 m²), at garden level, adds a study between the bath and the terrace, for guests staying several nights who like to read or write outdoors.

The baths

Besides each room's own bath, the inn has two communal baths fed by the Yamashiro Onsen spring, Gensei and Usukō, the latter made of white cypress. They are separated by gender, and each has an indoor bath, an open-air bath and a sauna. The etiquette of shared baths (wash seated before getting in, keep your towel out of the water) is explained in our onsen etiquette guide.

Spa Entei offers treatments using hot spring water and medicinal herbs, from 10 am to 10 pm, by reservation, for guests aged 16 and over.

Dining at Kaiseki Horin

Dinner and breakfast are served at Kaiseki Horin, on a broad terrace above the forest garden. Dinner is kaiseki (a Japanese meal of many small seasonal courses) served omakase, meaning the kitchen decides the menu, adjusted to any dietary needs given in advance. Ingredients come from the region: hairy crab from Hashitate port, abalone, ayu (sweetfish) from the Shōgawa gorge, wagyu beef and Noto salt gelato. Seasonal upgrades are booked ahead, including snow crab sashimi from 7 November to 20 March.

Around the inn

The inn is about 4 km from JR (Japan Railways) Kaga-Onsen Station on the Hokuriku Shinkansen (bullet train), 15 minutes from Kanazawa, and 16 km from Komatsu Airport. Down in the town, the Ko-Sōyu public bathhouse recreates an old-style bath tiled with Kutani porcelain. The neighbouring spa town of Yamanaka Onsen has the Kakusenkei gorge, a 1.3 km riverside walk. Kanazawa makes an easy day out: Kenrokuen garden, the Higashi Chaya teahouse district and the Nagamachi samurai quarter. All of this is covered on our Kanazawa and Kaga Onsen page, and the Japanese Alps and Kanazawa in 10 days itinerary passes through the area.

Beniya Mukayu, KAI Kaga or Kinjohro

Our selection has three addresses in this region:

Beniya MukayuKAI KagaKinjohro
Settinghill above Yamashiro Onsencentre of Yamashiro OnsenKanazawa, by the Asano River
Rooms16486
Private open-air bathin every roomin some roomsnone (private indoor bath)
Childrenfrom age 7welcomewelcome

Beniya Mukayu is the most secluded of the three and the only one where every room has an open-air bath; KAI Kaga sits in the heart of the town, opposite Ko-Sōyu, and welcomes families; Kinjohro is a kaiseki house in the city, for those who want to sleep in Kanazawa itself.

Room types

RoomSizeViewBedCapacity
Japanese Premier Tatami Garden View Room70 m²Forest Gardenfuton mattresses on tatamimaximum 3 guests
Details

Who it suits: Couples who want to sleep Japanese-style on futons, facing the garden.

Bathroom: private open-air hot spring bath overlooking the garden, shower booth

Outdoor space: wooden terrace and bamboo veranda

Highlights: 4 rooms, on the garden or first floor; tatami room with sofa; hammock on request

Room page

Western Premier Garden View Room60 m²Forest Garden2 full-size beds (120 × 195 cm) that can be combinedmaximum 2 guests
Details

Who it suits: Couples who prefer a bed and a Western-style room.

Bathroom: private open-air hot spring bath overlooking the garden, shower booth

Outdoor space: very large wooden terrace with skylight

Highlights: 2 rooms, on the top floor; sofa and desk; reached by an 18-step stairway, not suitable for elderly or disabled guests

Room page

Zen Style Junior Suite70 m²Forest Garden2 full-size beds (120 × 195 cm) that can be combinedmaximum 3 guests
Details

Who it suits: Couples who want both a tatami room and a proper bed.

Bathroom: private open-air hot spring bath with jacuzzi, shower booth

Outdoor space: wooden terrace and bamboo veranda

Highlights: 2 suites, on the garden level; tatami room with sofa and separate bedroom

Room page

Zen Style Executive Suite95-100 m²Forest Garden2 full-size beds (120 × 195 cm) that can be combinedmaximum 4 guests
Details

Who it suits: Families or friends wanting space and a view down over the garden's trees.

Bathroom: private open-air hot spring bath overlooking the garden, shower booth

Outdoor space: bamboo veranda

Highlights: 6 suites, on the 2nd, 3rd and 4th floors; tatami room, bedroom and walk-in closet

Room page

Wakamurasaki Suite120 m²Forest Garden, mountain cherry tree over 100 years old2 full-size beds (120 × 195 cm) that can be combinedmaximum 4 guests
Details

Who it suits: A spring stay to see the cherry tree in bloom from the room, or a family of four.

Bathroom: private open-air hot spring bath overlooking the garden, shower booth

Outdoor space: bamboo veranda, floor-to-ceiling sliding doors

Highlights: single suite, on the 2nd floor; living room with a 3 m lacquered table, tatami room, bedroom, walk-in closet

Room page

Byakuroku Terrace Suite110 m²Forest Garden2 full-size beds (120 × 195 cm) that can be combinedmaximum 4 guests
Details

Who it suits: Long, quiet stays for guests who want to live out on the terrace and read or write.

Bathroom: private open-air hot spring bath overlooking the garden, shower booth

Outdoor space: large wooden terrace reaching into the garden, bamboo veranda

Highlights: single suite, on the garden level; study with desk and sofa between the bath and the terrace, tatami room, bedroom, walk-in closet

Room page

Source: Beniya Mukayu, Guest Rooms (site officiel) — accessed 30 October 2026

Restaurants

Kaiseki Horin

Facilities

  • 16 rooms and suites, all facing the Forest Garden and all with a private open-air hot spring bath
  • Two communal Yamashiro Onsen baths, Gensei and Usukō (the latter in white cypress), separated by gender, each with an indoor bath, an open-air bath and a sauna
  • Spa Entei: treatments using hot spring water and medicinal herbs, 10 am to 10 pm by reservation, from age 16
  • Three libraries (Main Library, Forest Library, Library Zero); Forest Garden around a 300-year-old red pine; Kenya Hara's artwork Tsukubai Ho-sun
  • Check-in 3 pm, check-out 11 am; dinner and breakfast at Kaiseki Horin
  • Children from age 7, with a child rate from 7 to 12; groups of up to 6 people

Location

55-1-3 Yamashiro Onsen, Kaga (Ishikawa Prefecture), on Yakushiyama hill above the hot spring town of Yamashiro Onsen. About 4 km from JR Kaga-Onsen Station and 10 km from Komatsu Airport.

Beniya MukayuKo-Sōyu250 m

Map drawn by Umika from OpenStreetMap data, © OpenStreetMap

From the hotelOn footBy car
Ko-Sōyu11 min (0.8 km)1.0 km
Kaga-Onsen Station (Shinkansen)—4.9 km
Komatsu Airport (KMQ)—15.7 km
Kakusenkei gorge—6.8 km

Shortest routes calculated by OSRM (routing.openstreetmap.de) on OpenStreetMap data, on 31 October 2026.

Guest reviews

4,5/5 — 340 reviews

Rating published by a travel website. Verified reviews from Umika travellers will appear here after their first trips.

Source: Google — accessed 30 October 2026

Best months to go

  • April — cherry blossoms in full bloom around 8 April
  • May — 22 °C, before the rainy season
  • October — 22 °C, mild autumn
  • November — Kenrokuen's snow ropes, maples in late November

Read next

Hotel's official website

Frequently asked questions

Where is Beniya Mukayu?

On Yakushiyama hill, above the hot spring town of Yamashiro Onsen in Kaga, Ishikawa Prefecture. Kaga-Onsen Station, on the Hokuriku Shinkansen, is about 4 km away and Komatsu Airport 16 km. Kanazawa is 15 minutes from Kaga-Onsen by Shinkansen.

Do all rooms have a private bath?

Yes. All 16 rooms and suites have their own open-air hot spring bath facing the forest garden, plus a shower booth. The Zen Style Junior Suite also has a jacuzzi. Two communal baths with saunas add to this.

Can we bring children?

Children are welcome from age 7, with a child rate from 7 to 12. The spa is open to guests aged 16 and over. The suites of 95 to 120 m² sleep up to four.

Are there rooms with proper beds?

Yes. Every category has 120 × 195 cm beds that can be pushed together, except the Japanese Premier Tatami Garden View Room, where guests sleep on futons. The Western Premier Garden View Room is the only fully Western room, on the top floor up an 18-step stairway.

How does dinner work?

Dinner is an omakase kaiseki at Kaiseki Horin, on a terrace above the garden, using regional produce. Allergies and preferences should be sent before arrival. Seasonal upgrades, such as snow crab from November to March, are booked in advance.

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Our sources: mukayu.com, relaischateaux.com, shiro-niwa.pref.ishikawa.lg.jp, japan.travel, ishikawatravel.jp.

Published 31 October 2026

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