Savor your stay at a historic registered cultural property Accommodation, and fully enjoy Japan’s deepest naturally flowing open-air rock bath.
A keyaki-wood Onsen Ryokan—beloved by Kenji Miyazawa and Torahiko Tamiya—crafted entirely from zelkova, a style that can no longer be recreated today. The historic Namari Onsen, first opened around 600 years ago, offers exceptionally high-quality waters recognized by selections such as “New Japan’s 100 Famous Hot Springs,” “Japan’s 100 Famous Hot Springs,” and “Japan’s Onsen Heritage.” Unusually even among well-known hot spring areas, the property has five source springs, and all four baths on site are luxurious 100% free-flowing natural spring water (kakenagashi). It is also known as “Namari-no-Yu,” featured in Kenji Miyazawa’s masterpiece *The Bears of Nametoko Mountain*, making this a special Accommodation where the story’s world and a historic Onsen come together. In 2025, the main building—of outstanding historical value—was designated a National Registered Tangible Cultural Property, allowing you to fully enjoy the beauty of traditional Japanese architecture as well. In particular, we highly recommend the 100% natural self-springing rock bath “Hakuen-no-Yu,” said to be Japan’s deepest—a superb bath that warms you through to your core.
We were fully satisfied with the Onsen, the room, the staff’s service, and the meals.It has become one of the Onsen we would like to visit again.
When I was younger, I could never work up the courage to enter the mixed-gender standing Onsen. Late at night and early in the morning, I would peek down from above again and again, only to think, “Ah… there are men in there…” and reluctantly give up. Now that women-only hours have been introduced, I was finally able to enjoy it this time.I also tried all three of the other baths. Even the showers fed directly by the hot spring source carried a sulfur scent—an authentic Onsen experience!The building still retains the nostalgic atmosphere I remembered, while facilities such as the toilets have been updated. It made for a truly pleasant return stay at Namari Onsen after 30 years.
| IN | 15:00～21:00 |
|---|---|
| OUT | 10:00 |
| Number of rooms | 32 rooms |
| Your child | Permitted |
| Pet | Not allowed |
| Guide dogs are allowed. |
Shirozaru Hot Spring
At our inn, we offer Onsen water exactly as it springs from the source—without heating, without adding water, and without circulation (free-flowing). Enjoy a “true Onsen” and feel its natural benefits on your skin.
The sauna features a design inspired by silhouettes from Hanamaki’s celebrated fairy-tale author Kenji Miyazawa, including motifs from “The Bears of Nametoko Mountain” and “Kenji.” You can also enjoy self löyly with a sauna stove inspired by the Galaxy Express. Refresh in a 1.25 m deep standing cold bath—matching the average depth of our signature natural spring rock bath, “Hakuen-no-Yu,” known as Japan’s deepest naturally flowing rock bath—and relax outdoors while taking in views of the Toyosawa River and Shiraito Falls.
Kenji Miyazawa, author of novels such as *Night on the Galactic Railroad* and *The Restaurant of Many Orders*, was related to our family and often visited from a young age. In his fairy tale *The Bears of Nametoko Mountain*, he also writes: “It eases stomach pain and heals wounds too—Lead Bath…” There are other Accommodations said to have been loved by Kenji Miyazawa, but ours is the only one that appears in his work. Fujisan Ryokan was also the setting for Torahiko Tamiya’s novel *Gin Shinju (Double Suicide in Silver)*. He stayed for a little over a month in Room No. 20 on the 3rd floor above the entrance and wrote the novel there. (Image: Rasu Chijin Kyokai)
About 600 years ago, it is said that the ancestors of the Fujii family, founders of our inn, discovered this Onsen at the foot of Mt. Takakura when they saw a white monkey emerging from a cave and healing wounds on its hands and feet in a spring bubbling up at the base of a katsura tree. Realizing it was an Onsen source, they built a simple hut around 1443 and opened it as a natural bath for their family. Later, in 1786, they built a rowhouse as a public bathhouse—marking the beginning of our Ryokan. Our main building was constructed from the late Meiji period to the early Taisho period, and throughout its long history has continued to welcome many guests seeking therapeutic bathing. In 2025, its outstanding historical value was recognized with designation as a National Registered Tangible Cultural Property, and it still preserves its beautiful traditional architecture today.
Spring
Located halfway up the Ou Mountains in Hanamaki City, this is the perfect place to escape the bustle of everyday life and enjoy the luxury of doing nothing. Our property stands on the banks of the Toyosawa River, surrounded by nature. In summer, you can listen to bell crickets; in autumn, enjoy modest fall foliage; and in winter, relax in an open-air bath while admiring the snow.
A reservation-only Shuttle Service bus stops at Namari Onsen Fuji Sanso Ryokan via Shin-Hanamaki Station and Hanamaki Station. (Pick-up: 3 trips per day / Drop-off: 1 trip per day)
If you would like to make a Reservation, please call us or write your request in the remarks section when making your Reservation.
From 9/1, a cooperation fee of 100 yen per one-way trip will be charged.
| Taxes | An additional Hot Spring Tax of 150 yen per person will be charged. |
|---|---|
| Card information | VISA / MASTER / JCB / AMEX / DINERS |
| Pets | Not allowed Guide dogs are allowed. |
| Breakfast | There is no information about breakfast. |
| Your child | You can stay. |
| Room service | Available for use From check-in until 9:00 PM |
| Common amenities |
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| Facilities and Features |
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| Esthetic Massage | None |
| Fitness gym | None |
| Public Bath |
|
| Open-air bath |
|
| Private bath |
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| Spring quality and benefits | Alkaline simple hot spring, mildly alkaline simple hot spring, hypotonic mildly alkaline hot spring Atopic dermatitis, eczema, rheumatoid arthritis, neuralgia, and gastrointestinal disorders ※Regarding the notation of "Gensen Kakenagashi" |
| Sauna | Available |
| Hot stone spa | None |
| About Hygiene Measures | [Measures in Response to the COVID-19 Pandemic]
● Meals at our inn are served as set meals for both breakfast and dinner.
・Both breakfast and dinner are served as set meals.
・If you would like in-Room dining, we can accommodate this for an additional fee.
● Enhanced hygiene measures within the building
・Disinfectant is available in shared areas such as the lobby.
・We carefully disinfect Facility items that are frequently touched, such as doorknobs.
・When cleaning Rooms and shared spaces, we ensure thorough ventilation to maintain clean air. The lobby is also ventilated regularly.
● Request for guest cooperation
・Wearing a mask is left to each guest’s discretion.
・Before check-in, we ask for your cooperation with temperature checks and confirmation of overseas travel history.
・Disinfectant is available throughout the building; please use it as needed during your stay.
● Thorough hygiene management for staff
・Staff strictly follow handwashing and gargling practices.
・We closely monitor employees’ health by requiring reporting when feeling unwell, ensuring preparedness for unforeseen situations.
● Support for guests who feel unwell
・If a guest feels unwell, we will ask for details such as when symptoms began and respond promptly, including guiding you to a hospital if necessary.
・Guests who feel unwell may be asked to refrain from using certain areas such as the restaurant and other shared spaces.
● Dining venue(s)
・The venue is ventilated regularly. |
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
By car
From the Tohoku Expressway, exit at Hanamaki-Minami IC (Iwate Prefecture). Turn left immediately, then turn right at the first traffic light. Continue straight on Prefectural Route 12 for about 14 km. Pass Shidotaira Onsen and Osawa Onsen, then pass Namari Onsen Ski Resort. After 150 m, our sign will be on your right—go down the slope in front of it for two turns.
By public transportation
From Hanamaki Station: 32 minutes by local bus (free shuttle available; Reservation required). From Hanamaki Airport: 35 minutes by car.
・Business Hours: 00:00～24:00 ・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring All baths are available 24 hours a day, except from 10:00 to 13:00 due to cleaning of some baths.
There are the following facilities and features. Hot spring・Open-air bath・Free-flowing hot spring・Large public bath・Private bath・Sauna・Free shuttle service・Room service
By car From the Tohoku Expressway, exit at Hanamaki-Minami IC (Iwate Prefecture). Turn left immediately, then turn right at the first traffic light. Continue straight on Prefectural Route 12 for about 14 km. Pass Shidotaira Onsen and Osawa Onsen, then pass Namari Onsen Ski Resort. After 150 m, our sign will be on your right—go down the slope in front of it for two turns. By public transportation From Hanamaki Station: 32 minutes by local bus (free shuttle available; Reservation required). From Hanamaki Airport: 35 minutes by car.
・Fee： Free for guests ・Parking Hours： From check-in to check-out ・Parking space： Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces： 60 cars ・Valet Service： Unavailable Free parking for the first 60 vehicles on a first-come, first-served basis. Guests staying in the Hot Spring Therapy Wing are asked to use the second parking lot.
・Business Hours: 15:00～21:00 ・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring All baths are available 24 hours, except from 10:00 to 13:00; some baths may be closed for cleaning during this time. ☆ “Gin-no-Yu”: Private use from 15:00 to 21:00; Men’s bath from 6:00 to 10:00; Women’s bath from 10:00 to 15:00 and from 21:00 to 6:00 *Private use is not available for guests staying in the long-term therapeutic lodging section.
Yes, there is.
[Measures in Response to the COVID-19 Pandemic] ● Meals at our inn are served as set meals for both breakfast and dinner. ・Both breakfast and dinner are served as set meals. ・If you would like in-Room dining, we can accommodate this for an additional fee. ● Enhanced hygiene measures within the building ・Disinfectant is available in shared areas such as the lobby. ・We carefully disinfect Facility items that are frequently touched, such as doorknobs. ・When cleaning Rooms and shared spaces, we ensure thorough ventilation to maintain clean air. The lobby is also ventilated regularly. ● Request for guest cooperation ・Wearing a mask is left to each guest’s discretion. ・Before check-in, we ask for your cooperation with temperature checks and confirmation of overseas travel history. ・Disinfectant is available throughout the building; please use it as needed during your stay. ● Thorough hygiene management for staff ・Staff strictly follow handwashing and gargling practices. ・We closely monitor employees’ health by requiring reporting when feeling unwell, ensuring preparedness for unforeseen situations. ● Support for guests who feel unwell ・If a guest feels unwell, we will ask for details such as when symptoms began and respond promptly, including guiding you to a hospital if necessary. ・Guests who feel unwell may be asked to refrain from using certain areas such as the restaurant and other shared spaces. ● Dining venue(s) ・The venue is ventilated regularly.
