A rare onsen inside a station building, with two differently themed baths inspired by a clear stream and sake barrels
Ehime Matsuno Town
Mori no Kuni Poppo Onsen is a rare onsen facility directly connected to JR Matsumaru Station in Matsuno Town, Ehime Prefecture. It has two baths with different atmospheres: Nametoko no Yu, inspired by the rocky cliffs of Nametoko Gorge, and Meiji no Yu, modeled after sake barrels. The two baths alternate by gender daily. Both bathing areas feature a sauna, a cold plunge bath using cold spring water, and an open-air resting area where you can feel the surrounding forest. There is also a free footbath in front of the station, making it an ideal healing spot during your travels.
TypeNatural Hot Spring
The facility uses a skin-friendly, low-tonicity alkaline cold mineral spring. Nametoko no Yu is a rustic rock bath inspired by the Yukiwa Falls, while Meiji no Yu features a warm wooden bath modeled after sake barrels. From the outdoor baths you can appreciate the rich natural surroundings of Matsuno Town and relax both body and mind.
Sauna TypeDry Sauna
The saunas differ by bath. The sauna in Nametoko no Yu is a rare type with stones and an automatic löyly unit installed beneath a gas-fired far-infrared heater, providing periodic steam that maintains moderate humidity. Meiji no Yu is a far-infrared dry sauna. Both are around 84°C to 85°C, allowing you to work up a good sweat while watching TV.
Water Qualityhot_spring
The cold plunge bath is located just outside the sauna. The water temperature is around 16°C to 18°C. Like the onsen baths, it uses alkaline cold spring water, which gives a slightly slippery, smooth feel to the skin and is very gentle and pleasant. After the cold plunge bath, you can move to the outdoor area and enjoy a fresh-air rest on benches or deck chairs surrounded by trees and greenery.
Closed Days: None
1661-13 Matsumaru, 大字 Matsuno, Kitauwa District, Ehime 798-2101, Japan
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 rare onsen inside a station building, with two differently themed baths inspired by a clear stream and sake barrels
Ehime Matsuno Town
Mori no Kuni Poppo Onsen is a rare onsen facility directly connected to JR Matsumaru Station in Matsuno Town, Ehime Prefecture. It has two baths with different atmospheres: Nametoko no Yu, inspired by the rocky cliffs of Nametoko Gorge, and Meiji no Yu, modeled after sake barrels. The two baths alternate by gender daily. Both bathing areas feature a sauna, a cold plunge bath using cold spring water, and an open-air resting area where you can feel the surrounding forest. There is also a free footbath in front of the station, making it an ideal healing spot during your travels.
TypeNatural Hot Spring
The facility uses a skin-friendly, low-tonicity alkaline cold mineral spring. Nametoko no Yu is a rustic rock bath inspired by the Yukiwa Falls, while Meiji no Yu features a warm wooden bath modeled after sake barrels. From the outdoor baths you can appreciate the rich natural surroundings of Matsuno Town and relax both body and mind.
Sauna TypeDry Sauna
The saunas differ by bath. The sauna in Nametoko no Yu is a rare type with stones and an automatic löyly unit installed beneath a gas-fired far-infrared heater, providing periodic steam that maintains moderate humidity. Meiji no Yu is a far-infrared dry sauna. Both are around 84°C to 85°C, allowing you to work up a good sweat while watching TV.
Water Qualityhot_spring
The cold plunge bath is located just outside the sauna. The water temperature is around 16°C to 18°C. Like the onsen baths, it uses alkaline cold spring water, which gives a slightly slippery, smooth feel to the skin and is very gentle and pleasant. After the cold plunge bath, you can move to the outdoor area and enjoy a fresh-air rest on benches or deck chairs surrounded by trees and greenery.
Closed Days: None
1661-13 Matsumaru, 大字 Matsuno, Kitauwa District, Ehime 798-2101, Japan
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