
Immersive Art Installation: "Genki-ro"
¥6,000~
Deep within the subterranean space of Oya in Utsunomiya, Tochigi Prefecture, lies a moment enveloped in herbal aromas and dense steam. Created by contemporary artist Takashi Kuribayashi, "Genki-ro Unit 6" is an experiential art installation that invites you to step inside and feel the artwork with your entire body.

About this experience
"Genki-ro Unit 6" rises within the underground landscape of Oya. Inside this monumental, tree-like structure, steam generated from medicinal herbs brewed in a massive cauldron is piped directly into the chamber. Visitors step into the heart of the artwork, surrounded by view-obscuring steam, rich herbal scents, and heat against the skin. It offers a rare opportunity to go beyond passive viewing and truly experience art through your own senses.
Meeting point
Please arrive at AZUMAYA in Oya-machi, Utsunomiya City by your scheduled start time. Check-in opens 10 minutes prior to the start time. Please present your booking confirmation email or screen to the staff. Open in Google Maps
Notes
• Genki-ro is an experiential artwork set within the natural environment of an old quarry. Due to the nature of the venue, you may encounter temperature fluctuations, high humidity, rocky and uneven terrain, dim lighting, and insects. While extensive safety measures are in place, please participate with an understanding of these natural conditions. • Because this is an experiential art facility set in a natural quarry, smoking is strictly prohibited across the entire property. • A strict no-smoking policy is enforced due to past incidents of littering and fire risks. Smoking or breaking these rules poses a nuisance to other guests and risks harming the environment. Please observe proper manners so all participants can enjoy a safe, pleasant experience. • Please be considerate of other guests throughout your stay on the premises. • The entrance opens and check-in begins 10 minutes before your reserved start time. • The end time includes completion of the experience program, full cleanup, and exiting the premises. • Due to preparations for the next time slot, extensions to the experience or changes to departure times cannot be accommodated. • If you do not arrive on time, we cannot reschedule you to a later slot. • Late arrivals may result in a shortened experience or refusal of entry. • Please note that refunds cannot be issued under these circumstances. • Unauthorized photography and videography on the Genki-ro grounds are strictly prohibited. • Please always be considerate of staff and fellow guests when taking photos. • Upon arrival, please listen to the staff's instructions and safety notes before taking out your camera or smartphone. • Guests who fail to comply with the photography guidelines may be asked to leave. • When capturing photos or videos, please preserve the atmosphere of the facility and avoid causing any disturbance to others. • Please keep your personal belongings and valuables safe at your own responsibility. • This experience is not a sauna; it is an "experiential art installation." The organizers assume no liability for any accidents, injuries, or issues (including those in the parking area). We kindly ask that you participate at your own discretion and risk, fully understanding the nature of the artwork. • If you wish to change your date or group size, modifications cannot be made directly to this booking; please make a new reservation. Be sure to note the date and party size you wish to cancel in the remarks field. Failure to do so may result in duplicate bookings that cannot be refunded. (Example note: "Canceling reservation for MM/DD" or "Changing reservation for X people on MM/DD to Y people"). Please note that even in the case of date or headcount changes, the system processing fee (¥1,100) is non-refundable. • Sharing notes and policies: The rules and precautions outlined on this page apply to the lead booker as well as all accompanying guests. The lead booker must share these guidelines with all companions in advance to ensure everyone understands and agrees before participating.
What to Bring
• Booking confirmation email/screen • Swimwear or clothing suitable for getting wet (rentals available) • Poncho (rentals available) • Bath towel (rentals available) • Face towel (rentals available) *You do not necessarily need a swimsuit as long as you wear clothes you don't mind getting wet (the interior will be filled with steam, so you will get completely soaked). *Optional rental items (can also be requested on-site): • Swimwear: ¥500 (tax included) • Poncho: ¥1,000 (tax included) • Towel Set (Bath towel & Face towel): ¥500 (tax included)
Participation Requirements
For the safety of all participants, those meeting any of the following conditions may not take part: • Children of elementary school age or younger cannot participate. • Those feeling unwell or under the influence of alcohol should refrain from participating. • Those with pre-existing conditions (e.g., heart disease, high blood pressure) or who are pregnant must consult a physician prior to participating. • The chamber will be filled with hot herbal steam, creating conditions similar to a sauna. Entry is strictly prohibited for anyone feeling unwell or intoxicated. • Those with high blood pressure, heart, spine, or neck conditions, a history of epilepsy or hyperventilation, those under the influence of alcohol, those with conditions that could worsen with participation, those who are or may be pregnant, or anyone deemed by organizers on the day to be at risk cannot participate. Depending on age or health status, a medical certificate may be required. If you have any questions or health concerns, please mention them in the remarks field when booking, and the organizers will respond.
Cancellation Policy
Except in cases where arrival is impossible due to severe weather such as typhoons, snow, or earthquakes, cancellations for personal reasons will incur the following fees: Up to 3 days prior: 5% 2 days prior: 30% 1 day prior: 50% Same day: 100%
Available dates
Sat, Oct 17
Fri, Oct 23
Sat, Oct 24
Sun, Oct 25
Mon, Oct 26
REVIEW
Reviews
Immersive Art Installation: "Genki-ro"
It was a wonderful experience to enjoy a steam sauna while forest bathing. Moving around inside Genkiro was also good exercise and a fun activity.
Immersive Art Installation: "Genki-ro"
My first visit to Genki-ro! 30 minutes and 600 yen by bus from Utsunomiya Station towards Oya. My first impression was, first and foremost, "in the middle of the forest!" After finishing the cabin-style reception, I put my valuables in a locker with a key. Then, after receiving various explanations, it was time for the sauna! Up to 8 people per session. This time there were 7. I participated alone. My impression of the sauna is that it's a steam bath. Since I usually only go to dry saunas, this was fresh. The sauna room, no, the sauna cabin, no, the sauna furnace, in a word, is it art? It's a first-time experience, hard to describe. According to the staff, the second tier feels like around 80 degrees Celsius, but with the steam at 80 degrees, if you fan it a little, it feels like it easily exceeds 100 degrees. You can also go outside from the top tier, and surprisingly, there's a tap outside. The water you can directly pour over yourself from there is amazing. On the other hand, there's also a proper cold bath. Actually, there's also a shower behind the stove. This was the most normal and most comfortable. I'm not sure if it's underground or on the first floor, but I thought it was fine not to know. It's probably art. To the staff, thank you for diligently feeding the firewood while we were in the sauna. I once again realized that the saunas we usually go to are the best environments created to help one achieve that deeply relaxed and balanced state. It's true that the flow/layout isn't great, but there was charm here that outweighed that. Lying down where I exited from the top tier, I looked at the sky and the swaying trees. Did it even rain a little partway through? This facility, where art and sauna merge in nature, was amazing.
Immersive Art Installation: "Genki-ro"
The Genki-ro, the staff, the waiting space, the atmosphere of the place – everything was simply beyond amazing. Next time, I will definitely visit again in a different season! It was truly the best experience.
Immersive Art Installation: "Genki-ro"
I was overwhelmed from beginning to end by how incredible it was, five times more than I had imagined. Being a Thai-style mist sauna, it was very novel and also hot, simply the best!!
Immersive Art Installation: "Genki-ro"
Genkiro: 75/100 A sauna with a wonderful atmosphere where nature and art are in harmony. The steam sauna in particular was just right in temperature, herbal aroma and balance, and very comfortable. There were no other guests this time, so the two of us had the place to ourselves and enjoyed a truly luxurious time. The outdoor cooling area is surrounded by nature. Listening to birdsong and the rustling of the trees, it is a superb environment where you feel almost at one with nature. The one disappointment was that we could hear the young staff member tending the firewood talking the whole time. It was a quiet space where you could listen to the sounds of nature, so it was a shame that the conversation drowned out the birdsong and the wind. If only that were improved, I feel this facility would easily go from 75 to 95 points.
Immersive Art Installation: "Genki-ro"
A reactor that, like a nuclear reactor, generates energy through steam and cooling. It was a mysterious experience. I wished I had the words to describe what happens here in place of nuclear fission 😆 In a space where art, sauna, nature, the artificial and love for the local area all merge and the boundaries blur, I looked at my half-naked self reflected in countless mirrors and wondered, "Wait, where is my own boundary?" — a strange question I exhaled with a sigh while cooling off outdoors 😮💨
Immersive Art Installation: "Genki-ro"
[Genki-ro Unit 6 is not a sauna. It is art.] "It's not a sauna. It's art." Hearing that, my interest in this extremely edgy facility grew even stronger. This is Genki-ro Unit 6, an art space born in a quarry ruin, integrating with nature. I had heard that it was a steam sauna. But don't underestimate it. A powerful wood-burning stove steams it up relentlessly. The humidity is high, the heat is heavy, enveloping you to the core. The perceived temperature reaches 100 degrees. It's the first time I've experienced such a deep flush from steam. I sweat as much as in a regular wood-fired sauna, and achieve a profound state of relaxation amidst the humidity. But this is not a sauna. I didn't come here to achieve 'totonou'. Even the beads of sweat overflowing from my fingertips must surely be one of the exhibits. The surroundings mist up thickly and white, and the outline of the quarry ruins slowly becomes ambiguous. Natural objects and man-made structures merge. Boundaries disappear. That is precisely what art is. Yes, this is, after all, an art experience. This facility, standing outdoors, changes its scenery with the weather. I visited on a rainy day. The smell of wet trees. The slightly melancholic atmosphere of the forest. The gentle drift of herb mist after each breath. ・Lemongrass ・Eucalyptus ・Holy Basil It was filled with the scents of my favorite herbs. Sight, smell, tactile sensation. Everything becomes part of the art. Moving my whole body throughout the facility, I plunge into the cold water bath, a water jar buried in the ground. Cold. Deep. Quiet. Ah, what a mysterious and wonderful experience this is. Genki-ro Unit 6 is not a sauna. It is an experiential art that blends nature and the body.
Immersive Art Installation: "Genki-ro"
Genki-ro was wonderful! Although they said art was the main focus, the sauna was also very pleasant. The mist felt good, and the staff member in charge was kind and explained various things, making it a very meaningful time. It seems the atmosphere changes with each season, so I'd like to visit again!
Immersive Art Installation: "Genki-ro"
I had quite a good experience. Also, the staff members provided good service. I enjoyed myself.
Immersive Art Installation: "Genki-ro"
Absolutely wonderful! The staff were friendly, the location was beautiful, and I left fully relaxed.
Immersive Art Installation: "Genki-ro"
It was my first time experiencing a sauna with ultra-high temperature and ultra-high humidity. Moving around on the slippery wooden planks in the mist was thrilling and fun. The staff were also easy to talk to, and being able to achieve a state of deep relaxation and clarity in the quiet atmosphere was the best.
Immersive Art Installation: "Genki-ro"
Looking forward to booking again!
Immersive Art Installation: "Genki-ro"
It was an experience in the dark~
Immersive Art Installation: "Genki-ro"
A herb steam sauna experience where you become a part of ART. The permanent Genki-ro is only here. Units 1 to 5 seem to have been displayed as temporary works at events, etc. And it seems that Unit 7 and beyond will appear somewhere in the future. Photography is prohibited in the steam sauna facility, so it's a mystery, but I think it's good that only those who have been there will understand it. It felt better than I expected. 120 minutes feeling nature and ART. Definitely!
Immersive Art Installation: "Genki-ro"
I thoroughly enjoyed the handcrafted feel. It truly is 'art.' The incredible effort they put into it made for an extraordinary experience. To be frank, when I made the reservation, I thought the price was high. However, after it was over, I felt it was worth more than enough. I experienced something that you normally can't experience, no matter how much money you pay.
Immersive Art Installation: "Genki-ro"
The reception staff were very friendly, and I had a very relaxing time. The idea of setting up a sauna inside an on-site art installation was quite interesting. The herbs added to the sauna during my session included rosemary, mint, eucalyptus, mugwort, fig leaves, and loquat leaves. The sauna room space was a bit small. At 168 cm, it was just about right for me, but taller people might find it a bit difficult to move around. This can serve as a reference. After the sauna, the scenery with the huge quarry ruins, the fireplace, and the ambient sounds was very much worth experiencing :)
Immersive Art Installation: "Genki-ro"
Our guides were so friendly and knowledgeable. We had a tasty bbq together at the end. The sauna was very enjoyable!
Immersive Art Installation: "Genki-ro"
Being able to enjoy a smoke sauna in a quarry — a space between nature and the artificial (artificial though it is, there is hardly any mobile signal, so it is cut off from modern information) — was truly moving. It was the first session of the day, so I could feel the inside getting hotter and hotter, which was fun. This may not fit the concept, so take it as idle talk, but if I could ask for one thing, I would have appreciated a shower separate from Genkiro where I could rinse off at the end.
Immersive Art Installation: "Genki-ro"
Overall: there are many things I would like improved, but on the whole the experience outweighed them and I'm glad I did it. The staff were also polite and attentive. Good points: I could feel nature and Zen, and came away refreshed. Points to improve: - I'd like to be able to go outside directly from the cold plunge. - I'd like to be able to shower downstairs as well. - A capacity of 8 felt like a lot. I'd like sessions staggered by an hour or limited to 6 people. - It would be nice if the paths from each changing room to the bonfire were paved. - Temperature control is subjective, and it felt much hotter than the 40–50°C of a typical steam sauna.
Immersive Art Installation: "Genki-ro"
This was an incredible experience. The installation itself is dramatic and beautiful, like nothing you'll see anywhere else. Breathtaking in its beauty set against the stark rock faces of the old quarry. The location is peaceful and calm, with the sun dappling through the leaves giving it all a serene and calming energy. The immersive sauna experience was incredible. Various levels within the structure allow you to choose the heat and you can cool off in the cold plunge pool or lay outside on a platform soaking up the natural environment around you. The staff were warm and friendly and made me feel welcome and relaxed. I enjoyed sitting chatting with them by the furnace talking about the construction of the installation as well as chatting about the local area and travel around Japan. I was lucky enough to be the only person visiting at the time I was there and therefore I benefitted from enjoying this experience in complete serenity - blissful! Highly recommend and a huge thanks to Joni and team who made me feel so welcome. I loved it and will certainly return.


