The ultimate relaxation with advanced saunas and natural free-flowing spring water from the source
Saitama Shiki City
"Ofuro no Osama Shiki" is a day-use bathing facility representing Shiki City in Saitama Prefecture, and it underwent a major renovation in January 2025. The "King's Onsen," which wells up from 1,500 m underground, is a weakly alkaline sodium chloride spring known for its excellent warming and moisturizing effects. The sauna facilities have been greatly upgraded, with two options on the men's side: a large sauna with automatic löyly, and a Tornado Sauna where self-löyly is followed by a burst of heat. The women's side also features a sauna with automatic löyly and a salt steam bath full of moisture. Other highlights include a crisp cold plunge bath using binchotan charcoal, and an open-air bathing area on the "totonoi deck" for fresh-air bathing. With a wide variety of outdoor baths and an expanded rock bathing area, the facility is fully equipped for a relaxing all-day stay.
TypeNatural Hot Spring
Generously offered natural hot spring water flowing up from 1,500 m underground. This weakly alkaline sodium chloride spring is kind to the skin, and its warmth lingers long after you leave the bath, making it a true beauty bath.
Sauna TypeDry Sauna
Stove Typeconvection
Capacity27people
A six-tier stadium-style sauna. Automatic löyly is activated at regular intervals, enveloping your whole body in powerful waves of heat. The top tier has a bed seat for one person, so you can lie back and luxuriate in the heat.
Sauna TypeDry Sauna
Stove Typeconvection
Capacity12people
A meditation sauna that allows self-löyly. After löyly, press the button to activate a powerful fan that creates a tornado-like blast of heat, instantly raising the perceived temperature. A popular space for sauna fans seeking intense heat.
Sauna TypeDry Sauna
Stove Typeconvection
Capacity15people
A dry sauna with automatic löyly and a temperature setting gentle on women. The top tier has a reclining shape, allowing you to relax and work up a sweat at your own pace. Enjoy a deep refresh in its pleasant heat.
Sauna TypeSalt Sauna
Stove Typeconvection
Capacity5people
A steam sauna filled with the vapor of natural hot spring water. By applying the provided salt to your body, you can help remove dead skin cells and enjoy the benefits of smoother, more radiant skin. With its mild temperature, it lets you enjoy detoxing while wrapped in moisture.
Water Qualitywell
Capacity6people
A cold plunge bath made with binchotan charcoal and barley stone, characterized by a sharp, refreshing chill. It is also deep, quickly cooling down your overheated body after the sauna and leading you into a爽快 cool-down.
Water Qualitywell
Capacity4people
A mildly chilled cold plunge bath using groundwater, installed in the outdoor area. Ideal for those who find very cold baths too much, or for anyone who wants to enjoy a two-step cooling experience. A comfortable cool-down spot.
Water Qualitytap
Capacity6people
A cold plunge bath with binchotan charcoal submerged in it, offering a gentle feel against the skin. It cools the body after the sauna with care, helping you refresh. The spacious design makes it easy to soak at leisure.
Closed Days: None
353-0001 5-11-6 Kamisuneoka, Shiki City, Saitama 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
The ultimate relaxation with advanced saunas and natural free-flowing spring water from the source
Saitama Shiki City
"Ofuro no Osama Shiki" is a day-use bathing facility representing Shiki City in Saitama Prefecture, and it underwent a major renovation in January 2025. The "King's Onsen," which wells up from 1,500 m underground, is a weakly alkaline sodium chloride spring known for its excellent warming and moisturizing effects. The sauna facilities have been greatly upgraded, with two options on the men's side: a large sauna with automatic löyly, and a Tornado Sauna where self-löyly is followed by a burst of heat. The women's side also features a sauna with automatic löyly and a salt steam bath full of moisture. Other highlights include a crisp cold plunge bath using binchotan charcoal, and an open-air bathing area on the "totonoi deck" for fresh-air bathing. With a wide variety of outdoor baths and an expanded rock bathing area, the facility is fully equipped for a relaxing all-day stay.
TypeNatural Hot Spring
Generously offered natural hot spring water flowing up from 1,500 m underground. This weakly alkaline sodium chloride spring is kind to the skin, and its warmth lingers long after you leave the bath, making it a true beauty bath.
Sauna TypeDry Sauna
Stove Typeconvection
Capacity27people
A six-tier stadium-style sauna. Automatic löyly is activated at regular intervals, enveloping your whole body in powerful waves of heat. The top tier has a bed seat for one person, so you can lie back and luxuriate in the heat.
Sauna TypeDry Sauna
Stove Typeconvection
Capacity12people
A meditation sauna that allows self-löyly. After löyly, press the button to activate a powerful fan that creates a tornado-like blast of heat, instantly raising the perceived temperature. A popular space for sauna fans seeking intense heat.
Sauna TypeDry Sauna
Stove Typeconvection
Capacity15people
A dry sauna with automatic löyly and a temperature setting gentle on women. The top tier has a reclining shape, allowing you to relax and work up a sweat at your own pace. Enjoy a deep refresh in its pleasant heat.
Sauna TypeSalt Sauna
Stove Typeconvection
Capacity5people
A steam sauna filled with the vapor of natural hot spring water. By applying the provided salt to your body, you can help remove dead skin cells and enjoy the benefits of smoother, more radiant skin. With its mild temperature, it lets you enjoy detoxing while wrapped in moisture.
Water Qualitywell
Capacity6people
A cold plunge bath made with binchotan charcoal and barley stone, characterized by a sharp, refreshing chill. It is also deep, quickly cooling down your overheated body after the sauna and leading you into a爽快 cool-down.
Water Qualitywell
Capacity4people
A mildly chilled cold plunge bath using groundwater, installed in the outdoor area. Ideal for those who find very cold baths too much, or for anyone who wants to enjoy a two-step cooling experience. A comfortable cool-down spot.
Water Qualitytap
Capacity6people
A cold plunge bath with binchotan charcoal submerged in it, offering a gentle feel against the skin. It cools the body after the sauna with care, helping you refresh. The spacious design makes it easy to soak at leisure.
Closed Days: None
353-0001 5-11-6 Kamisuneoka, Shiki City, Saitama 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