Nestled in the satoyama of Tateyama, where you can unwind with a natural hot spring and a variety of saunas
Chiba Tateyama City
"Nansō Jōyama Onsen Satomi no Yu" is one of the largest day-use hot spring facilities in Minami Bōsō, surrounded by the rich natural beauty of Tateyama City, Chiba Prefecture. The natural hot spring that bubbles up from underground has excellent heat-retaining properties and is also cherished as a beauty bath. The sauna facilities are exceptionally well equipped, with a spacious high-temperature dry sauna and a steam sauna full of soothing humidity. After alternating between the crisp, cold cold plunge bath and the sauna, outdoor bathing in the open-air area creates a blissful moment of relaxation. Free loungewear and towels are provided, and the property also includes a restaurant where you can enjoy fresh local seafood, as well as well-appointed rest areas. It is a soothing retreat for adults, where you can relax all day long and fully enjoy the charms of Bōsō.
TypeNatural Hot Spring
A natural hot spring rich in sodium chloride, known for its excellent heat-retaining and moisturizing effects. It has a smooth feel on the skin and is well regarded as a beauty bath. Even after bathing, your body stays warm for a long time, gently relieving fatigue from the roots. In the open-air bath and a variety of feature baths, you can enjoy this famous spring while feeling the abundant nature of Tateyama.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity20people
A spacious stadium-style sauna room using far-infrared heaters. The steady heat wraps around your entire body and gradually encourages perspiration from deep within. With tiered seating, you can choose the heat level that suits you best, and the quiet space lets you refresh both body and mind.
Sauna TypeSteam Sauna
Capacity8people
A steam sauna filled with soft vapor and rich humidity. The low temperature lets you warm up slowly and thoroughly, while moisturizing your skin as you relax. It is ideal for those who do not like dry saunas or for times when you want to take your time and steady your breathing. Wrapped in moisture, it offers a deeply soothing experience that loosens both body and mind.
Water QualityTap Water
Capacity4people
A pleasantly cool cold plunge bath located right near the sauna room. With a stable water temperature, it quickly cools down your overheated body after the sauna. The spacious tub lets you soak comfortably, supporting a refreshing totonou experience that leads naturally into the open-air bathing area.
Closed Days: None
294-0048 Chiba Prefecture, Tateyama City, Shimoaraka 305-1
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
Nestled in the satoyama of Tateyama, where you can unwind with a natural hot spring and a variety of saunas
Chiba Tateyama City
"Nansō Jōyama Onsen Satomi no Yu" is one of the largest day-use hot spring facilities in Minami Bōsō, surrounded by the rich natural beauty of Tateyama City, Chiba Prefecture. The natural hot spring that bubbles up from underground has excellent heat-retaining properties and is also cherished as a beauty bath. The sauna facilities are exceptionally well equipped, with a spacious high-temperature dry sauna and a steam sauna full of soothing humidity. After alternating between the crisp, cold cold plunge bath and the sauna, outdoor bathing in the open-air area creates a blissful moment of relaxation. Free loungewear and towels are provided, and the property also includes a restaurant where you can enjoy fresh local seafood, as well as well-appointed rest areas. It is a soothing retreat for adults, where you can relax all day long and fully enjoy the charms of Bōsō.
TypeNatural Hot Spring
A natural hot spring rich in sodium chloride, known for its excellent heat-retaining and moisturizing effects. It has a smooth feel on the skin and is well regarded as a beauty bath. Even after bathing, your body stays warm for a long time, gently relieving fatigue from the roots. In the open-air bath and a variety of feature baths, you can enjoy this famous spring while feeling the abundant nature of Tateyama.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity20people
A spacious stadium-style sauna room using far-infrared heaters. The steady heat wraps around your entire body and gradually encourages perspiration from deep within. With tiered seating, you can choose the heat level that suits you best, and the quiet space lets you refresh both body and mind.
Sauna TypeSteam Sauna
Capacity8people
A steam sauna filled with soft vapor and rich humidity. The low temperature lets you warm up slowly and thoroughly, while moisturizing your skin as you relax. It is ideal for those who do not like dry saunas or for times when you want to take your time and steady your breathing. Wrapped in moisture, it offers a deeply soothing experience that loosens both body and mind.
Water QualityTap Water
Capacity4people
A pleasantly cool cold plunge bath located right near the sauna room. With a stable water temperature, it quickly cools down your overheated body after the sauna. The spacious tub lets you soak comfortably, supporting a refreshing totonou experience that leads naturally into the open-air bathing area.
Closed Days: None
294-0048 Chiba Prefecture, Tateyama City, Shimoaraka 305-1
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