Saitama Soka City
A soothing place with a superb sauna and a natural onsen
Ryusenji-no-Yu Soka Yatsuka is a day-use onsen bathhouse in Soka, Saitama. With a wide range of saunas, including the Bazooka Löyly Sauna and the Medi Sauna, and cold plunges including one below 10°C (50°F), you can experience the ultimate cool-down. The variety of baths is another draw, from a natural onsen of heat-retaining chloride spring water to a strongly carbonated bath. The warm-stone lounge forest villa also has a coworking space and a book library, so you can spend the whole day in comfort.

A bath with fine carbon dioxide dissolved in it. As you soak, your whole body is wrapped in tiny bubbles, and circulation is boosted with a pleasant tingle. Set at a lukewarm temperature, it lets you relax without strain on the body even during a long soak.

A sauna known for its automatic löyly, which runs every hour on the hour and at half past. Waves of heat wrap your whole body, drawing out a sweat in an instant. In the spacious room, you can enjoy an invigorating sweat as you feel the powerful heat.

A sauna in the open-air area with löyly you pour yourself. You can adjust the humidity and temperature at your own pace and spend a meditative time quietly turning inward in the calm room. Wrapped in pleasant steam, you can sink into deep relaxation.

A women-only sauna with mud packs and salt always on hand. Soothed by aromatic scents, you can rub salt onto your body to leave your skin smooth. In the gentle heat, you can take your time enjoying beauty care and detox.

A cold plunge that gently cools a body flushed from the sauna. It is properly deep, and the cold, enveloping the whole body, pleasantly pulls it taut.

An extremely cold plunge with the water set below 10°C (50°F). It chills the body instantly after the sauna, bringing an intense rush of refreshment as the cold pulls the body taut. A stimulating cool-down for experienced sauna-goers.

A deep cold plunge in the men’s bath. Once you have rinsed yourself from head to toe, you can even submerge completely, cooling yourself right to the top of your head. Its appeal is a dynamic cool-down, giving your whole body over to the cold water.

A lounge area offering a variety of warm-stone rooms, including an aroma ondol room, an aroma rock-salt room and a hanjeungmak, a Korean kiln sauna. Men and women can use it together in the special wear provided, and far-infrared heat warms you to the core. There is also a women-only aroma healing room. With a cool-down terrace, a coworking space and a library of more than 10,000 books, it is a blissful space where you can relax all day long.
Open Year-Round
Shuttle bus
Parking for 400 cars (height limit 2.2 m (7.2 ft))
Saitama
A bathing resort with natural onsen water, three saunas and three cold plunges
Saitama
In Omiya, the town of bonsai, a main bathhouse like a forest spring and a sauna to unwind in
Saitama
A day-use bathhouse with high-quality natural onsen water flowing at 922 liters per minute and Saiboku’s food