Chiba Nagareyama City
Spa Metsa Otaka Ryusenji no Yu
A major bathhouse where you can enjoy Japan's first Dragon Sauna and a wide variety of baths
- Tattoos may be permitted
- Natural Hot Spring
- Self löyly available
- Auto löyly available
- Aroma löyly available
- Finnish sauna
About Spa Metsa Otaka Ryusenji no Yu
"Spa Metsa Otaka Ryusenji no Yu" is a major bathhouse in Nagareyama, Chiba Prefecture. It features three types of sauna, including the stunning Dragon Sauna, where five stoves operate at once, and three types of cold plunge baths with different depths and temperatures, letting you experience the ultimate relaxation in one of Japan's largest outdoor air bath areas. The appeal also lies in its high-quality natural hot spring water and a wide variety of baths, including five carbonated springs. With a botanical bedrock bath lounge, coworking space, and a well-equipped restaurant on site, it is an exceptional place where you can spend the whole day in comfort.
Hot SpringONSEN
Natural Hot Spring
The main bath area where you can enjoy high-quality natural hot spring water that feels like a blessing from the forest. It offers a variety of baths, including the fantastical Hotaru no Onsen, wrapped in luminous light, and hotter baths. In the open space, you can stretch out your arms and legs and let the warmth of nature thoroughly soothe your daily fatigue.
Carbonated Spring Jacuzzi
Enjoy five different carbonated springs, including a highly carbonated spring, an open-air carbonated spring, and beautiful-bubble pot carbonated springs. The fine bubbles gently envelop your whole body, giving you the luxurious comfort of warming gradually from deep within.
SaunaSAUNA
Dragon Sauna
A spectacular sauna room with five stoves lined up side by side. Auto löyly runs at regular intervals, and every hour on the hour you can enjoy the Dragon löyly, when all five stoves release heat at once. The intense steam envelops your entire body, giving you a dynamic, powerful sweating experience.
Aroma-Scented Moisture Salt Sauna
A mist sauna filled with the fragrance of aroma. The room is designed to warm you thoroughly all the way to your feet, and mud packs and salt are kept permanently available. Wrapped in pleasant steam, you can slowly work up a sweat and enjoy the feeling of minerals soaking in and leaving your skin smooth.
medi sauna
An outdoor meditation sauna installed in the open-air area. Self löyly is available, allowing you to create your preferred humidity and heat. In the quiet, you can step away from everyday thoughts and spend a relaxing time deeply reconnecting with your mind and body.
Cold BathCOLD BATH
Forest Cold Plunge Bath
A spacious, extra-large cold plunge bath where you can quickly cool down after the sauna. You can sink your whole body in comfortably, then transition smoothly to outdoor air bathing in Japan's largest totonou space afterward.
Deep Cold Plunge Bath
A deep cold plunge bath that you can enter while standing. Uniform water pressure is applied to your entire body, and it cools you all the way to your head, giving you a deep sense of refreshment.
Metsa Cold Plunge Bath
A single-digit-temperature cold plunge bath exclusive to the men's bath area. The extremely chilled water tightens your entire body intensely, letting you enjoy the sharp refreshment of cooling down an overheated body in an instant.
Hot Stone SpaHOT STONE SPA
Bedrock Bath Lounge
A bedrock bath area with a botanical relaxation atmosphere. Move through several rooms with different themes, such as the aroma salt stone room and the cool room, and enjoy detoxing together in unisex special clothing. A coworking space and a library with more than 15,000 books are also on site, so you can spend your time exactly as you like.
Aroma Yang Guifei Room
A women-only bedrock bath area located inside the bedrock bath lounge. Without worrying about being seen, you can wrap yourself in the aroma fragrance, warm your body slowly, and fully enjoy deep relaxation and detoxification for both body and mind.
Facility Information
- Address
- 1-15-1 Otakanomori Nishi, Nagareyama, Chiba Prefecture
- Business Hours
- 06:00〜02:00
Open Year-Round
- Closed Days
- Open Year-Round
- Gender Access
- Gender Separated
- Tattoo Policy (Communal Bath)
- OK if fully covered with designated stickers
Available if the tattoo can be covered with two of the store's designated cover seals sold at the front desk (9.5×14.0 cm each). Seal purchase and wearing required.
- Official Website
- View official site
Access
Visited by the Editor-in-Chief
The Editor-in-Chief visited in person in December 2025
Natural hot springs, sauna, and cold plunge bath — all absolutely perfect
Read the full review
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