Riverside Open-Air Bath and Hyakusoyaku Herbal Bath: Onsen Time at Kaido Roman On-yado Tsutaya
If you're looking for an onsen ryokan in Kiso-Fukushima, start by listening at our bathhouse. The murmuring of the Kiso River nearby, the scent of wood, and the air of Kiso Valley. Experience the Kiso Road's onsen, cherished by travelers of the past, through our open-air bath and indoor herbal bath. This is the onsen time at Kaido Roman On-yado Tsutaya. Immerse yourself in the gentle onsen water from the sacred Mount Kiso Ontake and relax at our riverside inn.
Immerse yourself in the seasons of Kiso Valley with our open-air bath along the Kiso River.
Our open-air bath is uniquely situated along the Kiso River. As you immerse yourself in the bath, you can feel the changing seasons of the Kiso Valley and hear the soothing sound of the river. Surrounded by lush mountains and fresh air, this location offers an experience unlike any other in the Kiso area. Stretch your legs after a day of sightseeing and enjoy the warmth of the water and the presence of nature, leaving you with a lasting impression unique to a ryokan.
This onsen, rich in natural carbonated elements, has long been cherished by travelers along the road and Mount Ontake pilgrims. Enveloped in the unchanged "dragon vein" from ancient times, it offers a slow respite from daily fatigue. Whether you're traveling along the Kiso Road, staying in a post town, or visiting to experience the changing seasons, a bath by the river provides a tranquil pause in your journey.
Soft water from Mount Kiso Ontake and natural carbonated components
The hot spring at On-yado Tsutaya is soft water rising from sacred Mount Ontake (Kiso Ontake). The scent of wood and the sound of the river together tell your whole body that you have arrived in Kiso. The spring type is a carbon-dioxide–calcium–bicarbonate cold mineral spring, said to help with neuralgia, muscle and joint pain, frozen shoulder, motor paralysis, stiff joints, bruises, sprains, chronic digestive disorders, sensitivity to cold, fatigue recovery, general health, cuts, burns, chronic skin conditions, high blood pressure and arteriosclerosis.
What matters on an onsen trip is not luxury alone, but wanting to return to the bath again and again between walking, eating and sleeping. Give your mood to the scenery in the riverside open-air bath, then warm yourself calmly in the indoor bath. That rhythm of bathing gives a natural pace to your time at the inn: an onsen experience that deepens quietly, with the memory of the Kiso Road, rather than showy ornament.
The gentle waters of Mount Ontake
Relax and rejuvenate from your journey along the Kiso Road with our gentle onsen (hot spring) sourced from the sacred Mount Kiso Ontake.
Open-air bath nestled by the sound of the river
An open-air bath along the river, enveloped by the murmuring of the Kiso River and the scent of wood.
The warmth of Hyakusoyaku onsen (hot spring)
In our indoor bath, you can enjoy a medicinal bath using Hyakusoyaku, a traditional remedy from the Kiso Valley.
Experience the ancient wisdom of Kiso with our indoor bath featuring Hyakusoyaku herbal bath.
After enjoying the sound of the river in the open-air bath, head to the indoor herbal bath. Inside the bath, we offer a herbal bath using "Hyakusoyaku," a traditional remedy cherished in the Kiso Valley. Known as the "divine medicine," Hyakusoyaku is made from the bark of the Amur cork tree, which grows naturally on the sacred Mount Kiso Ontake. The bath, rich in the tree's ingredients, gently envelops your skin and warms your body.
The charm of Kiso's baths lies in the meeting of nature's bounty and the wisdom of local living in one bathhouse. Enjoy the onsen (hot spring) as a gift from the earth in the open-air bath, and the Hyakusoyaku bath, passed down through generations in Kiso, in the indoor bath. As you move between the two, savor the leisurely passage of time along the Kiso Road.
Basic Information on Day-use Bathing and Stay Hours
Our onsen is open not only to overnight guests but also for day-use bathing. The day-use fee is 800 yen and bathing hours are 13:00–20:00. Bathing may not be possible depending on bookings, so please contact us in advance if you plan to visit for the day. A riverside soak makes a pleasant pause midway along the Kiso Road, after walking the post town, or as the last stop of your journey.
For overnight guests the onsen is available 5:00–23:00, with separate baths for men and women. The indoor baths, also separated by gender, are open 24 hours except during cleaning. The bathhouse is on the 1st floor of the main building: the men's bath has a blue curtain and the women's a pink one. Guests with tattoos are welcome, and babies may bathe with a guardian. Wake your body in the morning bath, rest your feet after a day of walking, and warm up quietly before sleep: a bathhouse that feels different at every hour is worth visiting several times during your stay. Please note that food and drinks, swimwear, and photography with cameras, video or camera phones are not permitted in the bathing area.
Listen to the sound of the river and immerse yourself in the warmth of Hyakusoyaku herbal bath—our Kiso Road onsen (hot spring) enriches your travel experience.
Our open-air bath along the Kiso River and the traditional Hyakusoyaku herbal bath from Kiso are cherished forms of relaxation that embody the spirit of the Kiso Road. On your next trip, consider leaving some room in your itinerary to visit our baths without over-scheduling. Your stay in Kiso-Fukushima will gently begin from the moment you walk towards the bath, guided by the sound of the river.