An open-air bath with spectacular views of the Okunagatoro waterfall and a silky 100% natural spring that soothes the body and mind
Saitama Minano Town
"Chichibu Onsen Mangan no Yu" is a day-use hot spring facility in Minano Town, Chichibu District, Saitama Prefecture, nestled in the nature of Okunagatoro. Its pride is the open-air bath overlooking the Okunagatoro Gorge flowing below and Mangan Falls, where you can enjoy 100% free-flowing spring water with an extremely high alkaline pH of 9.3 and a rich, silky texture. The sauna is compact, but it is equipped with a dry sauna that delivers solid heat. The cold bath also uses the same spring water, offering a gentle, mellow feel on the skin and softly cooling the body down. Together with Chichibu's local specialty, koganemeshi, it offers a luxurious therapeutic bathing experience that lets you feel nature with all five senses.
TypeNatural Hot Spring
An extremely alkaline natural hot spring with a pH of 9.3. Its silky texture, rare even nationwide, is one of its defining features, and it is expected to help with beautiful skin effects and neuralgia. Both the indoor and outdoor baths are offered with 100% free-flowing spring water, allowing you to fully enjoy its rich mineral content together with the spectacular scenery of Okunagatoro.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity5people
A compact, two-tier dry sauna wrapped in the warmth of wood. It uses a convection-style system with sauna stones, and the room temperature is set at around 90°C. In a quiet space, you can slowly warm your body to the core and encourage deep sweating. With its calm, TV-free environment, it is ideal when you want to refresh yourself while quietly focusing inward.
Water QualityHot Spring Water
Capacity4people
A luxurious cold plunge bath that uses the facility’s signature natural spring water as is. Its hallmark is a mellow, gentle feel on the skin thanks to its alkaline water, which softly and refreshingly cools the body after sauna use. The water temperature changes with the seasons, letting you feel nature’s blessings through your skin. It offers a lavish cooling-down experience made possible only by 100% natural spring water.
Closed Days: None
4000 Shimohinozawa, Minano Town, Chichibu District, Saitama 369-1625
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
An open-air bath with spectacular views of the Okunagatoro waterfall and a silky 100% natural spring that soothes the body and mind
Saitama Minano Town
"Chichibu Onsen Mangan no Yu" is a day-use hot spring facility in Minano Town, Chichibu District, Saitama Prefecture, nestled in the nature of Okunagatoro. Its pride is the open-air bath overlooking the Okunagatoro Gorge flowing below and Mangan Falls, where you can enjoy 100% free-flowing spring water with an extremely high alkaline pH of 9.3 and a rich, silky texture. The sauna is compact, but it is equipped with a dry sauna that delivers solid heat. The cold bath also uses the same spring water, offering a gentle, mellow feel on the skin and softly cooling the body down. Together with Chichibu's local specialty, koganemeshi, it offers a luxurious therapeutic bathing experience that lets you feel nature with all five senses.
TypeNatural Hot Spring
An extremely alkaline natural hot spring with a pH of 9.3. Its silky texture, rare even nationwide, is one of its defining features, and it is expected to help with beautiful skin effects and neuralgia. Both the indoor and outdoor baths are offered with 100% free-flowing spring water, allowing you to fully enjoy its rich mineral content together with the spectacular scenery of Okunagatoro.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity5people
A compact, two-tier dry sauna wrapped in the warmth of wood. It uses a convection-style system with sauna stones, and the room temperature is set at around 90°C. In a quiet space, you can slowly warm your body to the core and encourage deep sweating. With its calm, TV-free environment, it is ideal when you want to refresh yourself while quietly focusing inward.
Water QualityHot Spring Water
Capacity4people
A luxurious cold plunge bath that uses the facility’s signature natural spring water as is. Its hallmark is a mellow, gentle feel on the skin thanks to its alkaline water, which softly and refreshingly cools the body after sauna use. The water temperature changes with the seasons, letting you feel nature’s blessings through your skin. It offers a lavish cooling-down experience made possible only by 100% natural spring water.
Closed Days: None
4000 Shimohinozawa, Minano Town, Chichibu District, Saitama 369-1625
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