Ubuya is a hot-spring ryokan on the north shore of Lake Kawaguchiko, built to face Mt. Fuji across the water; older booking pages still call it Kozantei Ubuya. Before you book, know five rules: the last dinner seating is 7 p.m., with no dinner and no refund after it; the station pickup runs 3 to 6 p.m. and only when you call; the in-room open-air baths are not hot-spring water; tattoos must be covered by two sheets; and canceling costs 100 percent from 3 days before.
For the lake itself and getting there from Tokyo, see our Lake Kawaguchiko guide.
Ubuya at a glance
| Item | Official rule |
|---|---|
| Address | 10 Azagawa, Fujikawaguchiko, Yamanashi 401-0303 |
| Check-in / out | 15:00 to 18:00 / 11:00 |
| Last dinner seating | 19:00; no dinner or refund after it |
| Station pickup | 15:00 to 18:00, call on arrival; no set times |
| Mt. Fuji view | All rooms, across the lake |
| Hot-spring water | Public baths only; not the in-room baths |
| Tattoos | Public bath only if covered by two 10 x 10 cm sheets |
| Cancellation | 10% 21 to 4 days before / 100% from 3 days before |
| Children | 0 to 2 free; preschool 50%; elementary 70% |
| Meals now | Buffet or shabu-shabu |
| Allergies | Tell the ryokan 7 days before |
From Ubuya’s official pages, read October 6, 2026.
What is Ubuya, and is it the same as Kozantei Ubuya?
Yes. The ryokan’s company page says the business was renamed Kozantei Ubuya in 1986 and Ubuya in 2019, and the current site calls the inn “Ubuya hot spring resort in Fujikawaguchiko.” If an older listing or a friend says Kozantei Ubuya, it is the same place.
Can you really see Mt. Fuji from every room?
That is what the ryokan says, in both languages: all guest rooms face Mt. Fuji across the lake, and the building faces the mountain, so the public bath and the lounge look at it too. It does not say how much of the view each room type gets.
Which room types are there?
| Room | Size | Guests | Open-air bath |
|---|---|---|---|
| Special Suite 501 | 113 m² | 2 to 6 | Yes |
| Suite 401 (with tea room) | 98 m² | 2 to 6 | Yes |
| Suite | 98 m² | 2 to 6 | Yes |
| Deluxe 301 | 98 m² | 2 to 6 | Yes |
| Deluxe | 90 m² | 2 to 6 | Yes |
| Superior | 71 m² | 2 to 6 | Yes |
| Standard | 59 m² | 2 to 4 | Yes |
| Japanese room with anteroom | 56 m² | 2 to 6 | No |
| Japanese room with 2 beds | 46 m² | 2 to 4 | No |
Ubuya’s room pages (Japanese and English), read October 6, 2026. Every type has twin beds, 200 x 120 cm.
The Japanese site marks rooms 501, 401 and 301 as bookable on the ryokan’s website only; the English site does not say so. For another Fuji-view ryokan on the same lake, see our Konansou guide.
Which room has the biggest view?
The ryokan describes Special Suite 501, on the top floor, as a room for watching Mt. Fuji and the stars from its terrace. It sleeps up to six and has its own open-air bath. Suite 401 adds a tea room, according to the Japanese room page. The two plain Japanese rooms at the bottom of the table are the only types without an open-air bath, so if a private soak matters to you, choose the Standard or above.
Every room type sleeps at least two, and five of them sleep up to six, which suits families or friends sharing a room. The beds are twins of 200 by 120 cm in every type, including the Japanese rooms.
Check-in, dinner and late arrival at Ubuya
What time are check-in and checkout?
Check-in runs from 15:00 to 18:00 and checkout is by 11:00. If you arrive before 15:00, the ryokan says you can wait in the lounge. There is no lunch service, and Ubuya does not take day visitors for its baths.
What happens if I arrive after 7 p.m.?
You miss dinner. The FAQ says that after the last dinner seating at 19:00, the ryokan will not serve dinner, and it will not refund the dinner charge either. If you will arrive after 18:00, call ahead on 0555-72-1145; the phone is answered from 11:00 to 18:00.
What is served for dinner and breakfast?
Both meals are in the dining rooms Fuji and Iwai. The dining page lists three courses but says that, for now, only the buffet and the shabu-shabu course are served. Ubuya does not publish dinner start or breakfast times.
Can Ubuya handle food allergies?
Only in a fixed way. Tell the ryokan at least 7 days before. For egg, milk, wheat and soy, it serves a set low-allergen menu, and it does not remove ingredients from that menu or the regular one. Everything is cooked in one kitchen, so traces can get in, and for severe allergies it may decline to serve a meal. The site says nothing about vegetarian, vegan or halal meals.
Getting to Ubuya from Kawaguchiko Station
Does Ubuya pick you up?
Yes, from 15:00 to 18:00. After 15:00, call the ryokan when you reach Kawaguchiko Station; it does not book set pickup times. It will also collect you from tourist sites near the lake. The Japanese access page gives about 10 minutes by taxi from the station. The site does not say whether the shuttle costs anything.
How do I get back to the station?
On your last morning, the ryokan runs drop-offs every 30 minutes from 8:30 to 11:00, on two routes: Kawaguchiko Station and the museum route. Confirm at the front desk on the day.
How long does it take from Tokyo?
We are not quoting Ubuya’s route maps: the Japanese and English versions give different train and bus times. Our Lake Kawaguchiko guide has the bus and train times from the operators’ own pages.
What does a smooth arrival day look like?
Work back from the ryokan’s own times. Aim to reach Kawaguchiko Station between 15:00 and 18:00, call for the pickup, and you will be in time for check-in, which also closes at 18:00, and for dinner, whose last seating is 19:00. If you are sightseeing around the lake first, the ryokan can collect you from a nearby tourist site instead of the station. If you arrive before 15:00, you can wait in the lounge. On the way out, the last drop-off is at 11:00, the same as checkout, so leave the room in time for the run you want.
The baths at Ubuya
Is the in-room open-air bath a hot spring?
No. This catches many guests. Ubuya’s FAQ says the baths in the rooms are not hot-spring water; only the public baths, called Fuji no Yu, are. The in-room bath still faces the lake, but if the onsen water is the point, use the public baths.
What kind of hot spring is it?
The bath page describes the water of Fuji no Yu as a calcium, sodium, chloride and sulfate spring, weakly alkaline. Ubuya does not take day visitors, so the public baths are for staying guests only.
When are the public baths open?
The Japanese page gives 15:00 to 24:00 and 5:00 to 10:00 the next morning; the sauna closes at 21:00. The English page gives only the closing times. The baths include a large bath, an open-air bath, lying and sitting baths and a sauna. Children may use the bath for the opposite sex only up to preschool age.
Can I bathe with tattoos?
In principle, no. The FAQ says guests with tattoos are refused in the public bath, unless two 10 x 10 cm cover sheets can hide them. Ask at the front desk for the sheets; the site does not say whether they cost anything. The in-room bath has no such rule. Our tattoo and onsen guide explains the wider picture.
Kids and families at Ubuya
Do children stay free?
Only the youngest. Ubuya takes guests from age 0 and charges children like this:
| Age | Rate | Meals | Bedding |
|---|---|---|---|
| 0 to 2 | Free | No | No |
| 3 to 6 (preschool) | 50% of adult | Children’s meal or buffet | Yes |
| Elementary school | 70% of adult | Similar to adult meal, or buffet | Yes |
Ubuya FAQ, read October 6, 2026. Children 2 and under also get no robe.
Elementary school children come in two service levels, A and B, chosen when you book; the FAQ does not describe them. Children’s robes start at 90 cm. Compare other hotels in our kids stay free table.
What do children eat?
The FAQ lists the children’s meal as steak or a hamburger steak (the ryokan chooses, not you), salad, sashimi, soup, a fried dish, a steamed dish, rice and dessert, and says the contents can change. Children who use the buffet eat from it instead. Infants aged 0 to 2 get no meal, so bring baby food.
Can babies use the public bath?
The ryokan leaves bathing with a baby to the parents’ judgment. Children may go into the bath for the opposite sex only up to preschool age; from elementary school, they use their own side.
Cancellation and booking at Ubuya
What does it cost to cancel?
| When you cancel | Fee |
|---|---|
| 21 to 4 days before | 10% of the stay |
| 3 days before, up to the day | 100% |
Ubuya FAQ (Japanese and English), read October 6, 2026.
The FAQ adds that the policy of your booking plan takes precedence, so read it when you book. Ubuya does not publish rules for no-shows or deposits. Our hotel cancellation guide compares fees across Japan.
Should I book on the official site?
Ubuya promises its own website is the lowest price for the same conditions. It also posted a warning in Japanese and English about some overseas booking sites that have no direct contract with it: guests had a confirmation email but no booking, got a different room, or paid more than double the regular price. Check the booking on Ubuya’s own site if in doubt.
Can I bring a pet or smoke?
No pets; the ryokan will suggest a pet hotel nearby. The whole building, including rooms, balconies and dining rooms, is non-smoking, with a smoking room for cigarettes and e-cigarettes. Three wheelchairs are available and can be reserved.
Can Ubuya help with a birthday or proposal?
Yes. The ryokan has a celebration page and sells extras such as a Mt. Fuji cake and flower bouquets. Its own pages give different deadlines for ordering a cake, so ask early when you book. For a stay given as a gift, it accepts payment in advance by bank transfer once the date is set.
Is Ubuya good for a large group?
The English FAQ says Ubuya has no banquet rooms where a group can dine together. Larger rooms sleep up to six, so a family can share one, but a tour group cannot eat as one table.
Can pregnant guests use the spa?
No. The ryokan says it accepts no spa treatments for pregnant guests, out of concern for the baby. It does not publish the spa menu or prices.
Who Ubuya suits
Couples and families who want Mt. Fuji outside every room, a private open-air bath, and a ryokan that takes babies. It is a harder fit for travelers who will arrive after 6 p.m., for guests who wanted hot-spring water in the room, for anyone with tattoos too large for two sheets, and for diners who need vegetarian food or ingredient-by-ingredient allergy changes.
If you want the hot-spring water itself, plan your soaks for the public baths in the evening and from 5:00 the next morning, and treat the in-room bath as a lake view with a tub. Book directly if you can, read your plan’s cancellation text, and keep the ryokan’s phone number handy for the station pickup.
Frequently asked questions
Is Ubuya the same as Kozantei Ubuya?
Can you see Mt. Fuji from every room at Ubuya?
What time is dinner at Ubuya?
Does Ubuya pick you up from Kawaguchiko Station?
Are the private open-air baths at Ubuya hot-spring water?
Can I use the onsen at Ubuya with tattoos?
What is the cancellation policy at Ubuya?
Can children stay at Ubuya?
Bottom line (2026): Ubuya, once Kozantei Ubuya, faces Mt. Fuji from every room. Arrive by 18:00: the pickup ends then, and there is no dinner or refund after 19:00. The in-room baths are not hot-spring water, tattoos need two cover sheets, and canceling costs 100 percent from 3 days before.
Sources
Every rule and figure on this page is from Ubuya’s own pages: the official site (Japanese) with its FAQ, rooms, baths, dining, access and company pages and its notice on overseas booking sites; and the English site with its FAQ and access page. All were read on October 6, 2026. Where the pages differ, we say so. Confirm on the official site before you book.
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