A simple hot spring in the satoyama countryside where you can enjoy alternating sauna and cold plunge sessions
Fukuoka Aka Village, Tagawa District
Genjii no Mori Onsen in Aka Village, Tagawa District is a hot spring facility located close to a campsite and the train station. It offers open-air baths with garden views, a spacious public bath, and private family baths. The spring is a mild simple hot spring with low irritation and is promoted for common onsen benefits such as relief from neuralgia and sensitivity to cold. In the large bath area you can use the dry sauna and cold plunge bath as a set to work up a sweat, and an outdoor relaxation area lets you enjoy totonou. A private barrel sauna is also available by separate reservation, so you can choose according to your preferred style of stay.
TypeNatural Hot Spring
A large public bath with indoor and open-air baths fed by a simple hot spring. The water is mild and gentle on the skin, making it suitable for long soaks without placing a heavy burden on the skin. You can enjoy both the seasonal open-air bath and the spacious indoor bath.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity20people
A dry sauna in the large bath area. It uses a stone-style electric heater to maintain high temperatures and offers TV and music for a relaxed atmosphere. The layout facilitates easy rounds between the cold plunge bath and the open-air area, making it simple to repeat sets.
Sauna TypeDry Sauna
Stove Typeelectric
Capacity30people
The women's dry sauna. Like the men's side, it uses a stone-style heater and features tiered seating and sauna mat rentals, making it comfortable for longer stays. The layout is designed with a natural flow toward the open-air rock bath area.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity5people
A cold plunge bath using groundwater. Multiple tubs with different depths and sizes are provided for post-sauna cooling, so you can choose according to how you feel. It is located close to the outdoor relaxation space, which helps create a good rhythm for totonou.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity5people
The women's cold plunge bath. There are several tubs with varying levels of coldness so you can use them for sauna sets or as a closing cool-down between baths. The groundwater's feel and clarity are characteristic, and the layout pairs well with outdoor relaxation benches.
Closed Days: None
5251-3 Aka, Aka-mura, Tagawa-gun, Fukuoka 824-0431, 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 simple hot spring in the satoyama countryside where you can enjoy alternating sauna and cold plunge sessions
Fukuoka Aka Village, Tagawa District
Genjii no Mori Onsen in Aka Village, Tagawa District is a hot spring facility located close to a campsite and the train station. It offers open-air baths with garden views, a spacious public bath, and private family baths. The spring is a mild simple hot spring with low irritation and is promoted for common onsen benefits such as relief from neuralgia and sensitivity to cold. In the large bath area you can use the dry sauna and cold plunge bath as a set to work up a sweat, and an outdoor relaxation area lets you enjoy totonou. A private barrel sauna is also available by separate reservation, so you can choose according to your preferred style of stay.
TypeNatural Hot Spring
A large public bath with indoor and open-air baths fed by a simple hot spring. The water is mild and gentle on the skin, making it suitable for long soaks without placing a heavy burden on the skin. You can enjoy both the seasonal open-air bath and the spacious indoor bath.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity20people
A dry sauna in the large bath area. It uses a stone-style electric heater to maintain high temperatures and offers TV and music for a relaxed atmosphere. The layout facilitates easy rounds between the cold plunge bath and the open-air area, making it simple to repeat sets.
Sauna TypeDry Sauna
Stove Typeelectric
Capacity30people
The women's dry sauna. Like the men's side, it uses a stone-style heater and features tiered seating and sauna mat rentals, making it comfortable for longer stays. The layout is designed with a natural flow toward the open-air rock bath area.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity5people
A cold plunge bath using groundwater. Multiple tubs with different depths and sizes are provided for post-sauna cooling, so you can choose according to how you feel. It is located close to the outdoor relaxation space, which helps create a good rhythm for totonou.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity5people
The women's cold plunge bath. There are several tubs with varying levels of coldness so you can use them for sauna sets or as a closing cool-down between baths. The groundwater's feel and clarity are characteristic, and the layout pairs well with outdoor relaxation benches.
Closed Days: None
5251-3 Aka, Aka-mura, Tagawa-gun, Fukuoka 824-0431, 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