A blue-glowing "Blue Cave" open-air bath and a spacious authentic sauna
Hokkaido Bibai City
"Pipa no Yu Yurinkan" is a scenic hot spring facility located on a hill in Bibai City, offering a panoramic view of the Ishikari Plain. Its biggest highlight is the "Blue Cave" open-air bath, which is illuminated in blue at night, allowing guests to enjoy a blissful soak in a magical atmosphere. The hot spring is a sodium bicarbonate spring rich in baking soda, known as a "beauty bath" with a silky texture that leaves the skin feeling smooth. The sauna room has large windows with views of the outside scenery, and its steady heat encourages a comfortable sweat. The cold plunge bath quickly cools down your body after the sauna. Outdoor air bathing while feeling the refreshing breeze unique to this hilltop setting offers a truly exceptional refreshment experience.
TypeNatural Hot Spring
A sodium bicarbonate spring, also known as a baking soda spring. Its silky water helps wash away impurities from the skin and leaves it feeling smooth. In the illuminated "Blue Cave" open-air bath, you can fully enjoy the hot spring in an otherworldly setting.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity12people
A spacious sauna room with an open feel, where you can look out at the scenery through the windows. The powerful heat from the stone stove envelops your whole body. A relaxing space where you can sweat comfortably while watching TV.
Water QualityTap Water
Capacity4people
A well-placed cold plunge bath located right in front of the sauna room for smooth movement. It thoroughly cools and tightens your body after the sauna. The water quality is also excellent, making for a refreshing cooldown.
Closed Days: None
3-ku, To-myo-cho, Bibai City, Hokkaido 072-0808
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 blue-glowing "Blue Cave" open-air bath and a spacious authentic sauna
Hokkaido Bibai City
"Pipa no Yu Yurinkan" is a scenic hot spring facility located on a hill in Bibai City, offering a panoramic view of the Ishikari Plain. Its biggest highlight is the "Blue Cave" open-air bath, which is illuminated in blue at night, allowing guests to enjoy a blissful soak in a magical atmosphere. The hot spring is a sodium bicarbonate spring rich in baking soda, known as a "beauty bath" with a silky texture that leaves the skin feeling smooth. The sauna room has large windows with views of the outside scenery, and its steady heat encourages a comfortable sweat. The cold plunge bath quickly cools down your body after the sauna. Outdoor air bathing while feeling the refreshing breeze unique to this hilltop setting offers a truly exceptional refreshment experience.
TypeNatural Hot Spring
A sodium bicarbonate spring, also known as a baking soda spring. Its silky water helps wash away impurities from the skin and leaves it feeling smooth. In the illuminated "Blue Cave" open-air bath, you can fully enjoy the hot spring in an otherworldly setting.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity12people
A spacious sauna room with an open feel, where you can look out at the scenery through the windows. The powerful heat from the stone stove envelops your whole body. A relaxing space where you can sweat comfortably while watching TV.
Water QualityTap Water
Capacity4people
A well-placed cold plunge bath located right in front of the sauna room for smooth movement. It thoroughly cools and tightens your body after the sauna. The water quality is also excellent, making for a refreshing cooldown.
Closed Days: None
3-ku, To-myo-cho, Bibai City, Hokkaido 072-0808
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