Ryokans in Japan

About Kozantei Ubuya

Every room faces Mount Fuji across Lake Kawaguchi. Most room types have an open-air bath on the balcony; the hot-spring water is in the shared bath, Fuji no Yu.

  • OnsenIn some bathsIn the Fuji-no-yu bath only
  • Bath in your roomMost room typesOpen-air; not hot-spring water
  • Private bathNot stated
  • TattoosWith limitsOnly if cover stickers hide them
  • MealsDinner and breakfastIn the dining rooms; by 19:00
  • Dietary needsSome dietsAllergens removed where possible
  • ChildrenWelcomeFrom age 0, with child rates
  • Check-in and dinnerCheck-in 15:00–18:00; out 11:00
  • Getting therePick-up from Kawaguchiko Station

Good to know before you book

  • Room baths are not hot-spring waterThe open-air baths in the rooms are not hot-spring water; the shared bath, Fuji no Yu, is the only one that is.
  • Dinner is a buffet or shabu-shabuAt present dinner is a mostly Japanese buffet or shabu-shabu, served in the dining rooms.
  • Two room types have no open-air bathThe Japanese room and the Japanese room with anteroom have no open-air bath.
View
Every room faces Mount Fuji across Lake Kawaguchi
Dinner style
A buffet or shabu-shabu at present
Sauna
15:00–21:00
Smoking
Non-smoking throughout, balconies included; there is a smoking room

Rooms and their baths

  • No room photos yet
    Open-air bath

    Kihinshitsu 501 貴賓室501

    113 m², plus a top-floor terrace · 2–6 guests · Twin beds, 200 × 120 cm

    Open-air bath; not hot-spring water

    The terrace is for Mount Fuji and the stars

  • No room photos yet
    Open-air bath

    Tokubetsushitsu 401 特別室401

    98 m² · 2–6 guests · Twin beds, 200 × 120 cm

    Open-air bath; not hot-spring water

    With a tea room and an indoor tea garden

  • No room photos yet
    Open-air bath

    Tokubetsushitsu 特別室

    98 m², plus a terrace · 2–6 guests · Twin beds, 200 × 120 cm

    Open-air bath; not hot-spring water

  • No room photos yet
    Open-air bath

    Deluxe 301 デラックス301

    98 m² · 2–6 guests · Twin beds, 200 × 120 cm

    Open-air bath; not hot-spring water

    For families

  • No room photos yet
    Open-air bath

    Deluxe デラックス

    90 m² · 2–6 guests · Twin beds, 200 × 120 cm

    Open-air bath; not hot-spring water

  • No room photos yet
    Open-air bath

    Superior スーペリア

    71 m² · 2–6 guests · Twin beds, 200 × 120 cm

    Open-air bath; not hot-spring water

    With a tatami area to lie down on

  • No room photos yet
    Open-air bath

    Standard スタンダード

    59 m² · 2–4 guests · Twin beds, 200 × 120 cm

    Open-air bath; not hot-spring water

The fine print

Last checked November 12, 2026.

Onsen

In some baths. Hot-spring water in the Fuji-no-yu bath only

A calcium-sodium chloride-sulphate spring.

Bath in your room

Some rooms. Open-air bath in most room types, not hot-spring water

The two plain Japanese-room types have none. Every room faces Mt Fuji.

Private bath

Not stated. Not stated by the ryokan

Tattoos

With limits. Only if two 10 × 10 cm cover stickers hide them

Refused in the large bath in principle; ask at the front desk for the stickers.

Meals

Included with every stay. Dinner and breakfast in the dining rooms

In the Fuji and Iwai dining rooms, not your room. Dinner can't be served after 19:00, and isn't refunded.

Dietary needs

Some diets. Allergens taken out where possible; not guaranteed

Egg, milk, wheat and soy get a low-allergen menu; other listed allergens are removed from dishes. One kitchen, so traces can occur.

Children

Welcome. Welcome from age 0, with child rates

Ages 3 to 6 pay 50% with a children's meal or buffet; primary school 70%. Children's samue from 90 cm.

Check-in and dinner

Check-in 15:00 to 18:00, check-out 11:00

Call if you'll arrive after 18:00. Dinner can't be served after 19:00.

Getting there

Pick-up from Kawaguchiko Station: call when you arrive

Or about 10 minutes by taxi.

Meals

Dinner
A mostly Japanese buffet, or shabu-shabu with the ryokan's own broth. The ryokan also lists a wagyu-steak kaiseki, which is not being served at present
Dining room
Dinner and breakfast are served in the Fuji and Iwai dining rooms, not in your room
Dinner time
The last dinner time is 19:00. After that dinner can't be served and isn't refunded
Tempura counter
The ryokan describes a tempura counter course; whether it is being served is not stated
Children's dinner
Steak or hamburger (the ryokan chooses), salad, sashimi, soup, a fried dish, a steamed dish, rice and dessert
Lunch
Not served; staff suggest local places

Baths

Shared bath
Fuji no Yu, open 15:00–24:00 and 5:00–10:00: a large bath facing Mount Fuji and the lake, an open-air bath, a shallow lying-down bath, a cool seated bath and a combined circuit bath
Water
Fujikawaguchiko Onsen, a weakly alkaline calcium-sodium chloride-sulphate spring, in Fuji no Yu only
Room baths
An open-air bath in seven of the nine room types, usable at any time. They are not hot-spring water
Private bath
Not stated by the ryokan
Sauna
15:00–21:00
Children in the baths
A child may use the opposite sex's bath only up to preschool age. Babies may bathe at the parents' discretion
Day visitors
Not accepted; the bath is for staying guests

Getting there

Pick-up
From Kawaguchiko Station, free: call the ryokan when you arrive. There are no fixed times
Taxi
About 10 minutes from Kawaguchiko Station
Car
About 3.5 km from the Kawaguchiko interchange
Parking
Not stated by the ryokan
Drop-off
Every 30 minutes from 8:30 to 11:00, to Kawaguchiko Station or the museum

Who it suits

Celebrations
The ryokan's motto is "celebrating life". Cakes and flowers need 3 days' notice
Children
Welcome from age 0. Children's house wear comes in sizes from 90 cm, and toys can be borrowed
Wheelchairs
Three to lend, which can be reserved. Lifts and steps are not stated
Facilities
A lounge facing Mount Fuji with light snacks, massage chairs, a table-tennis lounge, a small shrine and a souvenir shop
Pets
Not allowed

Place and season

The view
Mount Fuji across Lake Kawaguchi from every room, the shared bath and the lounge. The lake reflects the night lights after dark
Fuji visibility by month
Not stated by the ryokan

History

  1. 1945

    Opens as the Ubugasaki campsite.

  2. 1948

    Becomes the Ubugasaki Hotel.

  3. 1986

    Renamed Kozantei Ubuya.

  4. 2000

    The bath wing Ao is built.

  5. 2019

    Renamed Ubuya.

Ryokan elsewhere to compare

Questions

Is the in-room bath at Kozantei Ubuya hot-spring water?

No. The ryokan says the room baths are not hot-spring water; only the shared bath, Fuji no Yu, is. Its water is a calcium-sodium chloride-sulphate spring.

Can I see Mount Fuji from my room at Kozantei Ubuya?

Every room faces Mount Fuji across Lake Kawaguchi. The shared bath and the lounge face it too.

Can I use the bath at Kozantei Ubuya with tattoos?

In principle not in the large bath. You may bathe if two 10 × 10 cm cover stickers hide your tattoos; ask at the front desk for them.

Where is dinner served at Kozantei Ubuya?

In the Fuji and Iwai dining rooms, as is breakfast. At present dinner is a buffet or shabu-shabu, and it can't be served after 19:00.

Is there a pick-up from Kawaguchiko Station?

Yes. Call the ryokan when you arrive at Kawaguchiko Station and it will come for you. A taxi takes about 10 minutes.

Are Ubuya and Kozantei Ubuya the same ryokan?

Yes. Kozantei Ubuya was the name from 1986 until 2019, when the ryokan was renamed Ubuya.