The Blessings of Two Hot Spring Sources and Radon
Yamaguchi Sanyo-Onoda City
A bathing facility attached to a drive-in restaurant famous for clam soup. It has two private hot spring sources, Oki Onsen and Itone Onsen, both of which are sodium-calcium chloride springs rich in radon. You can enjoy both springs in the outdoor baths and indoor baths, and the open-air bath lets you soak in the hot spring while feeling the sea breeze. The salty water slowly warms your body and carefully eases the fatigue of long-distance drivers and local guests.
TypeNatural Hot Spring
An open-air bath where you can enjoy two private hot spring sources. This sodium-calcium chloride spring is rich in radon, and the salty water slowly warms your body. You can soak in the open air while feeling the sea breeze, and bathing while looking up at the sky is especially refreshing. The post-bath warming effect lasts a long time, and it is said to help promote metabolism and relieve fatigue.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity12people
A full-fledged, three-tier dry sauna equipped with a gas-powered far-infrared stove. Its compact design keeps the distance from the stove to the benches short, and the top tier is enveloped by intense radiant heat. With a TV installed, it is a space where local guests can spend time however they like, yet the front seat directly in front of the stove is a serious setup that draws out sweat thoroughly. Far-infrared heat that helps boost metabolism gradually reaches deep into the body and, together with the effects of the hot spring, promotes a deep sweat.
Water QualityTap Water
Capacity4people
A cold plunge bath located right next to the sauna room. Its stepped design with handrails is a major feature, and it is built so you can immerse yourself up to your chest. Circulating cooling keeps the water temperature steady, allowing you to enjoy consistent coldness throughout the year.
Closed Days: None
〒757-0012 Yamaguchi Prefecture, Sanyo-Onoda City, Habu 2216-7
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
The Blessings of Two Hot Spring Sources and Radon
Yamaguchi Sanyo-Onoda City
A bathing facility attached to a drive-in restaurant famous for clam soup. It has two private hot spring sources, Oki Onsen and Itone Onsen, both of which are sodium-calcium chloride springs rich in radon. You can enjoy both springs in the outdoor baths and indoor baths, and the open-air bath lets you soak in the hot spring while feeling the sea breeze. The salty water slowly warms your body and carefully eases the fatigue of long-distance drivers and local guests.
TypeNatural Hot Spring
An open-air bath where you can enjoy two private hot spring sources. This sodium-calcium chloride spring is rich in radon, and the salty water slowly warms your body. You can soak in the open air while feeling the sea breeze, and bathing while looking up at the sky is especially refreshing. The post-bath warming effect lasts a long time, and it is said to help promote metabolism and relieve fatigue.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity12people
A full-fledged, three-tier dry sauna equipped with a gas-powered far-infrared stove. Its compact design keeps the distance from the stove to the benches short, and the top tier is enveloped by intense radiant heat. With a TV installed, it is a space where local guests can spend time however they like, yet the front seat directly in front of the stove is a serious setup that draws out sweat thoroughly. Far-infrared heat that helps boost metabolism gradually reaches deep into the body and, together with the effects of the hot spring, promotes a deep sweat.
Water QualityTap Water
Capacity4people
A cold plunge bath located right next to the sauna room. Its stepped design with handrails is a major feature, and it is built so you can immerse yourself up to your chest. Circulating cooling keeps the water temperature steady, allowing you to enjoy consistent coldness throughout the year.
Closed Days: None
〒757-0012 Yamaguchi Prefecture, Sanyo-Onoda City, Habu 2216-7
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