Nagano Iida City
Enjoy a silky alkaline simple spring and a far-infrared sauna at a long-established ryokan that has continued since the Edo period
"Sunabarai Onsen" is an atmospheric hot spring inn in Iida City, Nagano Prefecture, with a history dating back to the Edo period. Its water is an alkaline simple spring known for its thick, silky texture, and it is widely praised as a "beauty bath" that leaves the skin smooth and supple. The large public bath features a spacious indoor bath with an esthetic bath, walking bath, electric bath, and a different medicinal bath each day, plus a charming open-air rock bath, offering a truly diverse range of baths worthy of being called the "New Seven Colors of the Hot Spring." The sauna uses a gas-powered far-infrared stove that emits powerful radiant heat, allowing you to work up an incredible sweat in the moist humidity and unmistakable heat.
An alkaline simple spring that takes pride in its superb, skin-beautifying, thick and silky texture. You can fully enjoy a wide variety of bathing styles, including the indoor walking bath, esthetic bath, jet bath, electric bath, daily medicinal bath, and the atmospheric open-air rock bath. This alkaline simple spring leaves the skin smooth and supple, and the warmth lingers in the body long after you get out of the bath.
A traditional, intensely hot sauna with a nostalgic atmosphere, using a gas far-infrared stove that emits powerful radiant heat. The temperature is set at around 85 to 90 degrees, and the moist, high-quality humidity is carefully maintained, so within just a few minutes you will work up an intense, waterfall-like sweat. The L-shaped two-tier bench is comfortable to sit on and warms you thoroughly from the core. To prevent overcrowding, use is currently limited to 5 people at a time.
Open Year-Round
Nagano Iida City
Enjoy a silky alkaline simple spring and a far-infrared sauna at a long-established ryokan that has continued since the Edo period
"Sunabarai Onsen" is an atmospheric hot spring inn in Iida City, Nagano Prefecture, with a history dating back to the Edo period. Its water is an alkaline simple spring known for its thick, silky texture, and it is widely praised as a "beauty bath" that leaves the skin smooth and supple. The large public bath features a spacious indoor bath with an esthetic bath, walking bath, electric bath, and a different medicinal bath each day, plus a charming open-air rock bath, offering a truly diverse range of baths worthy of being called the "New Seven Colors of the Hot Spring." The sauna uses a gas-powered far-infrared stove that emits powerful radiant heat, allowing you to work up an incredible sweat in the moist humidity and unmistakable heat.
An alkaline simple spring that takes pride in its superb, skin-beautifying, thick and silky texture. You can fully enjoy a wide variety of bathing styles, including the indoor walking bath, esthetic bath, jet bath, electric bath, daily medicinal bath, and the atmospheric open-air rock bath. This alkaline simple spring leaves the skin smooth and supple, and the warmth lingers in the body long after you get out of the bath.
A traditional, intensely hot sauna with a nostalgic atmosphere, using a gas far-infrared stove that emits powerful radiant heat. The temperature is set at around 85 to 90 degrees, and the moist, high-quality humidity is carefully maintained, so within just a few minutes you will work up an intense, waterfall-like sweat. The L-shaped two-tier bench is comfortable to sit on and warms you thoroughly from the core. To prevent overcrowding, use is currently limited to 5 people at a time.
Open Year-Round
A cold plunge bath located right next to the sauna exit, maintained at around 18 degrees. The water quality is astonishingly smooth and soft, cooling the body gently and gradually without causing any harsh stimulation. It is also ideal for locking in the moisturizing benefits of the hot spring, which helps prevent you from getting chilled after bathing.
A cold plunge bath located right next to the sauna exit, maintained at around 18 degrees. The water quality is astonishingly smooth and soft, cooling the body gently and gradually without causing any harsh stimulation. It is also ideal for locking in the moisturizing benefits of the hot spring, which helps prevent you from getting chilled after bathing.
