Rustic open-air baths surrounded by woodland, plus a signature mud pack for a skin-beautifying experience
Shizuoka Ito City
"Izu Kogen no Yu Day-Use Hot Spring" is a day-use hot spring facility full of openness, surrounded by the rich natural beauty of Izu Kogen. On the sprawling grounds, a variety of open-air baths, including a rock bath and a cascading shower bath, are scattered throughout the woodland, allowing you to enjoy a bath while taking in the forest atmosphere. Its signature attraction is the free mud pack experience. You can apply mud all over your body to help care for your skin, and it is enjoyable for both adults and children. The sauna area is also well equipped, and cooling off in the crisp cold plunge bath in the open-air area brings a particularly refreshing feeling together with the clear air of the plateau.
TypeNatural Hot Spring
An alkaline simple hot spring. Its water feels soft on the skin and is gentle, making it suitable for long bathing sessions. Combined with the signature mud pack, it is a skin-beautifying bath that lets you experience even smoother, silkier skin.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity15people
A comfortable dry sauna where steady heat gently envelops your whole body. The moderate temperature setting encourages a good sweat without placing too much strain on the body. In a clean room filled with the warmth of wood, you can relax and refresh at your own pace.
Water QualityTap Water
Capacity3people
A cold plunge bath installed in the open-air area, where you can enjoy the feel of the plateau air. Its pleasantly cool temperature of around 18°C gently tightens your body after sauna use, offering the luxurious experience of cooling down while surrounded by the forest atmosphere.
Closed Days: None
1180 Yawatano, Ito City, Shizuoka Prefecture 413-0232
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
Rustic open-air baths surrounded by woodland, plus a signature mud pack for a skin-beautifying experience
Shizuoka Ito City
"Izu Kogen no Yu Day-Use Hot Spring" is a day-use hot spring facility full of openness, surrounded by the rich natural beauty of Izu Kogen. On the sprawling grounds, a variety of open-air baths, including a rock bath and a cascading shower bath, are scattered throughout the woodland, allowing you to enjoy a bath while taking in the forest atmosphere. Its signature attraction is the free mud pack experience. You can apply mud all over your body to help care for your skin, and it is enjoyable for both adults and children. The sauna area is also well equipped, and cooling off in the crisp cold plunge bath in the open-air area brings a particularly refreshing feeling together with the clear air of the plateau.
TypeNatural Hot Spring
An alkaline simple hot spring. Its water feels soft on the skin and is gentle, making it suitable for long bathing sessions. Combined with the signature mud pack, it is a skin-beautifying bath that lets you experience even smoother, silkier skin.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity15people
A comfortable dry sauna where steady heat gently envelops your whole body. The moderate temperature setting encourages a good sweat without placing too much strain on the body. In a clean room filled with the warmth of wood, you can relax and refresh at your own pace.
Water QualityTap Water
Capacity3people
A cold plunge bath installed in the open-air area, where you can enjoy the feel of the plateau air. Its pleasantly cool temperature of around 18°C gently tightens your body after sauna use, offering the luxurious experience of cooling down while surrounded by the forest atmosphere.
Closed Days: None
1180 Yawatano, Ito City, Shizuoka Prefecture 413-0232
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