One of Tokyo's leading natural hot springs, bubbling up in the forest of Jindaiji
Tokyo Chofu City
"Jindaiji Natural Onsen Yumori no Sato" is a day-trip hot spring facility in Chofu City, Tokyo. Its jet-black "fossil onsen," which springs from 1,500 meters underground, is among the most concentrated in Tokyo and is known for its excellent skin-smoothing and heat-retention effects. The sauna is a high-humidity shio-kama bath (mist sauna), with a gentle warmth that slowly heats you from the core and is especially comforting. In the outdoor area, there is a cold plunge bath lined with binchotan charcoal, offering a refreshing cooldown through the cleansing effect of fresh water and charcoal. Set in a garden-style bath with a touch of feng shui, it is a place to forget the noise of the city for a while.
TypeNatural Hot Spring
A richly colored black hot spring known as a fossil onsen, formed by organic matter dissolved in seawater from tens of thousands of years ago. It is rich in humic acid, and its jet-black color is so deep that when you put your hand in the water, it disappears within just a few centimeters. With its mildly alkaline and soft texture, it is beloved as a skin-smoothing beauty bath.
Sauna TypeMist Sauna
Capacity6people
A steam bath with overwhelming humidity, where water droplets constantly fall from the walls and ceiling. Unlike a dry sauna, it is not hard to breathe in, and the soft warmth wraps around your whole body, gently encouraging deep sweating. True to the name Shio-kama, it is a soothing sauna experience where you can relax peacefully in a quiet, enveloping space.
Water QualityCharcoal Filtered Water
Capacity3people
Located in the outdoor area, this carefully designed cold plunge bath has binchotan charcoal laid across the bottom and surrounding edges. Thanks to the charcoal's purifying effect, the water is exceptionally clear and gentle on the skin. Fresh water is constantly flowing in, cooling down your heated body after the sauna in a refreshing and pleasant way.
Closed Days: None
〒182-0017 Tokyo, Chofu City, Jindaiji Motomachi 2-12-2
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
One of Tokyo's leading natural hot springs, bubbling up in the forest of Jindaiji
Tokyo Chofu City
"Jindaiji Natural Onsen Yumori no Sato" is a day-trip hot spring facility in Chofu City, Tokyo. Its jet-black "fossil onsen," which springs from 1,500 meters underground, is among the most concentrated in Tokyo and is known for its excellent skin-smoothing and heat-retention effects. The sauna is a high-humidity shio-kama bath (mist sauna), with a gentle warmth that slowly heats you from the core and is especially comforting. In the outdoor area, there is a cold plunge bath lined with binchotan charcoal, offering a refreshing cooldown through the cleansing effect of fresh water and charcoal. Set in a garden-style bath with a touch of feng shui, it is a place to forget the noise of the city for a while.
TypeNatural Hot Spring
A richly colored black hot spring known as a fossil onsen, formed by organic matter dissolved in seawater from tens of thousands of years ago. It is rich in humic acid, and its jet-black color is so deep that when you put your hand in the water, it disappears within just a few centimeters. With its mildly alkaline and soft texture, it is beloved as a skin-smoothing beauty bath.
Sauna TypeMist Sauna
Capacity6people
A steam bath with overwhelming humidity, where water droplets constantly fall from the walls and ceiling. Unlike a dry sauna, it is not hard to breathe in, and the soft warmth wraps around your whole body, gently encouraging deep sweating. True to the name Shio-kama, it is a soothing sauna experience where you can relax peacefully in a quiet, enveloping space.
Water QualityCharcoal Filtered Water
Capacity3people
Located in the outdoor area, this carefully designed cold plunge bath has binchotan charcoal laid across the bottom and surrounding edges. Thanks to the charcoal's purifying effect, the water is exceptionally clear and gentle on the skin. Fresh water is constantly flowing in, cooling down your heated body after the sauna in a refreshing and pleasant way.
Closed Days: None
〒182-0017 Tokyo, Chofu City, Jindaiji Motomachi 2-12-2
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