A 140 cm deep cold bath and auto-löyly every 15 minutes. Usa's rising-star sauna.
Oita Usa City
"SAUNA MEGURIYU" is a full-scale facility for sauna enthusiasts, created inside Hotel MEGURI in Usa City, Oita Prefecture. Its biggest highlight is the standing cold plunge bath, 140 cm deep, cooled by a chiller using underground natural water. The cooling experience, which instantly and deeply envelops the entire body, delivers an overwhelming sense of refreshment found nowhere else. The sauna room is equipped with a powerful auto-löyly system that operates every 15 minutes, constantly filling the room with fresh heat and humidity. Together with "Usa Hachiman no Yu," a 100% free-flowing natural hot spring, it promises an exceptional totonou experience through state-of-the-art facilities, high-quality water, and a carefully designed flow of movement.
TypeNatural Hot Spring
A bicarbonate spring that wells up from underground, offered as a luxurious 100% free-flowing natural hot spring. With a gentle spring temperature of around 40°C, the water helps smooth and soften the skin and is ideal for rinsing before and after sauna use. Its fresh hot spring minerals gently soothe both body and mind, further deepening relaxation after the sauna.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity10people
A full-fledged dry sauna featuring auto-löyly every 15 minutes. The water poured onto the sauna stones instantly turns to steam, filling the room with powerful yet pleasant heat. The clean, modern interior has subdued lighting and a calm atmosphere, allowing you to focus on deep sweating. Enjoy a cutting-edge sauna experience that warms your body to the core in a short time.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity8people
A standing cold plunge bath luxuriously filled with underground natural water and chilled to the ideal temperature by a chiller. What makes it remarkable is its 140 cm depth, which lets even adult men soak all the way up to the shoulders and cool the body vertically from head to toe. The mellow feel of underground water, combined with the floating sensation created by the depth, delivers an otherworldly cooldown. It instantly releases your heated body after sauna use, from the top of your head to your fingertips and toes.
Closed Days: None
144-1 Yokkaichi, Usa City, Oita 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
A 140 cm deep cold bath and auto-löyly every 15 minutes. Usa's rising-star sauna.
Oita Usa City
"SAUNA MEGURIYU" is a full-scale facility for sauna enthusiasts, created inside Hotel MEGURI in Usa City, Oita Prefecture. Its biggest highlight is the standing cold plunge bath, 140 cm deep, cooled by a chiller using underground natural water. The cooling experience, which instantly and deeply envelops the entire body, delivers an overwhelming sense of refreshment found nowhere else. The sauna room is equipped with a powerful auto-löyly system that operates every 15 minutes, constantly filling the room with fresh heat and humidity. Together with "Usa Hachiman no Yu," a 100% free-flowing natural hot spring, it promises an exceptional totonou experience through state-of-the-art facilities, high-quality water, and a carefully designed flow of movement.
TypeNatural Hot Spring
A bicarbonate spring that wells up from underground, offered as a luxurious 100% free-flowing natural hot spring. With a gentle spring temperature of around 40°C, the water helps smooth and soften the skin and is ideal for rinsing before and after sauna use. Its fresh hot spring minerals gently soothe both body and mind, further deepening relaxation after the sauna.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity10people
A full-fledged dry sauna featuring auto-löyly every 15 minutes. The water poured onto the sauna stones instantly turns to steam, filling the room with powerful yet pleasant heat. The clean, modern interior has subdued lighting and a calm atmosphere, allowing you to focus on deep sweating. Enjoy a cutting-edge sauna experience that warms your body to the core in a short time.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity8people
A standing cold plunge bath luxuriously filled with underground natural water and chilled to the ideal temperature by a chiller. What makes it remarkable is its 140 cm depth, which lets even adult men soak all the way up to the shoulders and cool the body vertically from head to toe. The mellow feel of underground water, combined with the floating sensation created by the depth, delivers an otherworldly cooldown. It instantly releases your heated body after sauna use, from the top of your head to your fingertips and toes.
Closed Days: None
144-1 Yokkaichi, Usa City, Oita 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