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Osaka Osaka City
Located right next to Suminoe Park Station, this large day-use hot spring features expansive garden open-air baths. With weekly alternating 'Forest Pot Bath' and 'Bamboo Grove Bath', it offers an intense heat wave super löyly and salt sauna, complemented by a deep cold plunge bath around 18°C and an outdoor air bath for a refreshing totonou experience. Enjoy a variety of baths with natural hot spring water sourced from 700 meters underground, including a pot bath with free-flowing spring water.
TypeNatural Hot Spring
A hypotonic, mildly alkaline natural hot spring sourced from 700 meters underground. Gentle on the skin and suitable for long soaks. In the pot bath with free-flowing spring water, you can directly experience the lightness and lasting warmth of the water, relaxing with the garden breeze. Enjoy the color and warmth of the water in the main and open-air baths as well.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity20people
Equipped with a stove stacked with aromatic stones and a gas far-infrared heater. Designed to rapidly increase the perceived temperature with intense heat waves, ensuring thorough sweating in a short time. After sweating, you can quickly transition to the cold plunge bath and outdoor air bath in the same area.
Sauna TypeSalt Sauna
Stove TypeBuilt-in Stove
Capacity5people
Using salt from Ako, this low-stimulation type involves rubbing salt into the skin before warming. The mineral-rich salt promotes sweating and helps expel waste with sweat. By sandwiching it between strong dry heat, you can enhance metabolism while reducing stress.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity15people
A traditional sauna with sauna stones (aromatic stones) stacked, generating steam from water falling from above. The quickly rising humid heat circulates within the room, ensuring thorough sweating in a short time.
Water QualityTap Water
Capacity6people
The cold plunge bath is maintained at an ideal water temperature of 15°C. A large amount of water is constantly circulated, causing the tub to overflow and maintain a clean water quality, which is a significant advantage. The tub is wide and deep, making it perfect for cooling down after a sauna session.
Closed Days: None
1-1-82 Izumi, Suminoe-ku, Osaka-shi, Osaka Prefecture
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—
Osaka Osaka City
Located right next to Suminoe Park Station, this large day-use hot spring features expansive garden open-air baths. With weekly alternating 'Forest Pot Bath' and 'Bamboo Grove Bath', it offers an intense heat wave super löyly and salt sauna, complemented by a deep cold plunge bath around 18°C and an outdoor air bath for a refreshing totonou experience. Enjoy a variety of baths with natural hot spring water sourced from 700 meters underground, including a pot bath with free-flowing spring water.
TypeNatural Hot Spring
A hypotonic, mildly alkaline natural hot spring sourced from 700 meters underground. Gentle on the skin and suitable for long soaks. In the pot bath with free-flowing spring water, you can directly experience the lightness and lasting warmth of the water, relaxing with the garden breeze. Enjoy the color and warmth of the water in the main and open-air baths as well.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity20people
Equipped with a stove stacked with aromatic stones and a gas far-infrared heater. Designed to rapidly increase the perceived temperature with intense heat waves, ensuring thorough sweating in a short time. After sweating, you can quickly transition to the cold plunge bath and outdoor air bath in the same area.
Sauna TypeSalt Sauna
Stove TypeBuilt-in Stove
Capacity5people
Using salt from Ako, this low-stimulation type involves rubbing salt into the skin before warming. The mineral-rich salt promotes sweating and helps expel waste with sweat. By sandwiching it between strong dry heat, you can enhance metabolism while reducing stress.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity15people
A traditional sauna with sauna stones (aromatic stones) stacked, generating steam from water falling from above. The quickly rising humid heat circulates within the room, ensuring thorough sweating in a short time.
Water QualityTap Water
Capacity6people
The cold plunge bath is maintained at an ideal water temperature of 15°C. A large amount of water is constantly circulated, causing the tub to overflow and maintain a clean water quality, which is a significant advantage. The tub is wide and deep, making it perfect for cooling down after a sauna session.
Closed Days: None
1-1-82 Izumi, Suminoe-ku, Osaka-shi, Osaka Prefecture
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