A newly opened large bath featuring sulfur spring water, two types of saunas, and a source-water cold plunge bath at one of the three great hot springs of the Bōchō region
Yamaguchi Shunan City
In September 2024, Houzanen, a long-established ryokan in Yuno Onsen, opened this new large public bath next to the main building. Its greatest feature is its rare spring quality, an alkaline simple spring with sulfur and slight radioactivity, which is uncommon along the Seto Inland Sea coast. With a highly alkaline pH of 9.5, it is known as a beauty bath. Guests can enjoy the famous waters of Yuno Onsen, which boasts more than 1700 years of history, in a spacious indoor bath, a rock-built open-air bath overlooking Yoichi River at night, and two source-water ceramic baths.
TypeNatural Hot Spring
An open-air bath surrounded by natural rock, where you can enjoy bathing while listening to the murmur of Yoichi River. Its open design makes you feel the breadth of the sky, and the smooth alkaline sulfur spring, rare along the Seto Inland Sea coast, gently wraps your skin. This luxurious space lets you savor the famous waters of Yuno Onsen, which has over 1700 years of history, while being embraced by the sounds and breeze of nature.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity2people
A high-temperature dry sauna equipped with a convection stove, installed in both the men's and women's baths. You can pour water onto the sauna stones yourself to create your preferred wave of heat in this self-löyly setup, and enjoy adjusting the humidity and heat. Each time you pour water, the perceived temperature jumps sharply, and an intense wave of heat that feels like it is searing the skin envelops your whole body.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity8people
A medium-temperature sauna using an electric far-infrared stove. Although the temperature setting is relatively low, the far-infrared heat is absorbed directly by the body and converted into warmth, so it feels less stifling and warms you deeply from the inside.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity8people
A high-temperature sauna room in the women's bath equipped with a convection stove and automatic löyly. Water is periodically poured over the sauna stones, and the rising steam quickly pushes up the room temperature and humidity. With a fairly spacious capacity and a layout that allows relaxed seating, it is designed to satisfy women who are serious about sauna. Combined with the famous waters of Yuno Onsen, it lets you enjoy deep perspiration and a high-quality totonou experience at the same time.
Water QualityHot Spring Water
Capacity2people
A sulfur-scented cold plunge bath filled with cooled water from Yuno Onsen's source. The smooth, silky feel unique to an alkaline sulfur spring gently soothes the body after sauna heat. Rather than a sharp chill, it offers a distinctive comfort that feels like surrendering to the soft qualities of the hot spring minerals, and it is set at a temperature ideal for alternating between sauna and bath. The sulfur aroma characteristic of Yuno Onsen's famous waters fills the bathing area with the refined atmosphere of a premium hot spring resort.
Water QualityTap Water
Capacity5people
A low-temperature cold water bath for sauna lovers seeking a more stimulating cooling sensation. The crisp, chilled water strips away the heat of the high-temperature sauna at once, letting you vividly enjoy the tightening sensation on your skin. It can also be paired with the source-water cold plunge bath for a two-step cooling experience with different temperatures, making it easy to choose the bath that suits your preference and physical condition.
Closed Days: Thursday
745-1132 4240-1 Yuno, Shunan-shi, Yamaguchi
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more
A newly opened large bath featuring sulfur spring water, two types of saunas, and a source-water cold plunge bath at one of the three great hot springs of the Bōchō region
Yamaguchi Shunan City
In September 2024, Houzanen, a long-established ryokan in Yuno Onsen, opened this new large public bath next to the main building. Its greatest feature is its rare spring quality, an alkaline simple spring with sulfur and slight radioactivity, which is uncommon along the Seto Inland Sea coast. With a highly alkaline pH of 9.5, it is known as a beauty bath. Guests can enjoy the famous waters of Yuno Onsen, which boasts more than 1700 years of history, in a spacious indoor bath, a rock-built open-air bath overlooking Yoichi River at night, and two source-water ceramic baths.
TypeNatural Hot Spring
An open-air bath surrounded by natural rock, where you can enjoy bathing while listening to the murmur of Yoichi River. Its open design makes you feel the breadth of the sky, and the smooth alkaline sulfur spring, rare along the Seto Inland Sea coast, gently wraps your skin. This luxurious space lets you savor the famous waters of Yuno Onsen, which has over 1700 years of history, while being embraced by the sounds and breeze of nature.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity2people
A high-temperature dry sauna equipped with a convection stove, installed in both the men's and women's baths. You can pour water onto the sauna stones yourself to create your preferred wave of heat in this self-löyly setup, and enjoy adjusting the humidity and heat. Each time you pour water, the perceived temperature jumps sharply, and an intense wave of heat that feels like it is searing the skin envelops your whole body.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity8people
A medium-temperature sauna using an electric far-infrared stove. Although the temperature setting is relatively low, the far-infrared heat is absorbed directly by the body and converted into warmth, so it feels less stifling and warms you deeply from the inside.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity8people
A high-temperature sauna room in the women's bath equipped with a convection stove and automatic löyly. Water is periodically poured over the sauna stones, and the rising steam quickly pushes up the room temperature and humidity. With a fairly spacious capacity and a layout that allows relaxed seating, it is designed to satisfy women who are serious about sauna. Combined with the famous waters of Yuno Onsen, it lets you enjoy deep perspiration and a high-quality totonou experience at the same time.
Water QualityHot Spring Water
Capacity2people
A sulfur-scented cold plunge bath filled with cooled water from Yuno Onsen's source. The smooth, silky feel unique to an alkaline sulfur spring gently soothes the body after sauna heat. Rather than a sharp chill, it offers a distinctive comfort that feels like surrendering to the soft qualities of the hot spring minerals, and it is set at a temperature ideal for alternating between sauna and bath. The sulfur aroma characteristic of Yuno Onsen's famous waters fills the bathing area with the refined atmosphere of a premium hot spring resort.
Water QualityTap Water
Capacity5people
A low-temperature cold water bath for sauna lovers seeking a more stimulating cooling sensation. The crisp, chilled water strips away the heat of the high-temperature sauna at once, letting you vividly enjoy the tightening sensation on your skin. It can also be paired with the source-water cold plunge bath for a two-step cooling experience with different temperatures, making it easy to choose the bath that suits your preference and physical condition.
Closed Days: Thursday
745-1132 4240-1 Yuno, Shunan-shi, Yamaguchi
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more