Private saunas in Japan

Tokyo, Japan

Akazaru occupies a former ryotei in Kagurazaka, Tokyo, now converted into a sauna. The second-floor public sauna is men-only, with staff-led aufguss, a cold plunge and an outdoor rest space overlooking a courtyard. A separate ground-floor private room, bookable by phone, adds a cypress-wood bath and can be taken for the day or overnight.

Higashiizu, Japan

Atagawa Sauna Koya Fuminaya is a small guesthouse in Higashiizu, built around a wood-fired sauna. A rooftop infinity cold plunge faces the Pacific. The sauna runs on self-poured löyly and takes one booked party at a time, up to eight people.

Tokyo, Japan

Ban Sauna Ginza East is a dedicated sauna near Tsukiji Honganji. A heated mineral floor, dry sauna and fine mist share one room, booked solo or as a private hire for up to six. It finishes with a 9-18°C cold plunge and a covered outdoor rest area.

Tokyo, Japan

COCO VILLA sauna is a private-room sauna near Azabujuban in Tokyo, with four room styles including a barrel-shaped Taru room. Each room has its own self-löyly stove and a cold plunge refreshed between bookings, for one guest or a pair. Walk-ins are taken when a room is free, though booking ahead is the usual route.

Nagoya, Japan

Cred Spa Sauna is a dedicated sauna venue near Sakae station in Nagoya, with a large shared sauna alongside private single and group rooms. Löyly runs on an automatic cycle, and a grass terrace outside gives room to cool off. Visitors wear swimwear throughout, and private rooms are booked by the hour.

Daigo, Japan

Daigo Sauna is a stone-built sauna at a whole-building old-folk-house rental in Daigo, Ibaraki, overlooking the surrounding countryside. The sauna is normally reserved for overnight guests, but the operator also sells it as a ticketed day sauna on Sundays. Both routes are booked in advance rather than walked into.

Hiroshima, Japan

Grand Sauna Hiroshima is a men-only capsule sauna in the Yagenbori nightlife district. Day-use sauna access is sold separately from overnight capsule stays. Aufguss sessions run on a published schedule, and the facility includes a massage service and restaurant.

Osaka, Japan

A reservation-only private sauna in central Osaka's Horie district. Each visit books an individual room rather than sharing space with other guests.

Iwanuma, Japan

Tateshita Sauna and Living is a private-hire sauna cabin near Sendai Airport, booked whole for up to five people. The room runs at 80-90 degrees with self-directed loyly, paired with a 15-17 degree cold plunge two steps from an outdoor rest terrace. A sauna-only day booking is available alongside overnight stays in the attached maisonette.

Osaka, Japan

Iza Sauna Osaka is a private rooftop sauna in Temmabashi, central Osaka, hired out by the space rather than sold as individual entry. Bookings run for a fixed block of time through the operator's own reservation system.

Shizuoka, Japan

Izumi Sauna is a private-hire sauna in Shizuoka, booked by the room rather than sold as individual entry. Sessions are reserved in advance through the venue's own online booking system.

Kobe, Japan

A downtown sauna and spa complex with separate men's and women's floors, an outdoor hot spring bath, and a capsule hotel for overnight stays. Private sauna rooms can be booked for small groups on ninety-minute slots.

Miyazaki, Japan

Kodomonokuni Sauna Park sets private cedar barrel saunas inside Kodomonokuni park on Miyazaki's Aoshima coast. Sessions are self-directed loyly and book by the hour for up to eight people, with an open-air terrace looking over the Pacific. Swimwear is required and the space is shared by all guests.

Kihoku, Japan

Log&Sauna Jyouno-hama rents out private log cabins near Kihoku's Kumano Kodo coast. Each has its own wood-fired sauna, a cold plunge, and a hot tub in the same timber-lined space. A private barbecue deck sits outside.

Kinokawa, Japan

Log&sauna Nagomi is a private log cabin near Kinokawa, Wakayama, hired as a whole unit. It has its own outdoor sauna and open-air bath, used in swimwear. Ponchos are provided for the cool-down rest between rounds, and both overnight and day-use bookings are available.

Nasushiobara, Japan

Mori no Tenku Sauna & Roten Buro is a private, wood-fired Finnish sauna in forest above Nasushiobara. Each booking takes one group, with an open-air bath, self-poured hojicha löyly, a cold plunge, reclining chairs and hammocks. Overnight sessions are for guests of the attached villa, and a café serves food afterwards.

Tokyo, Japan

O2 Plage is a private sauna floor inside the Grand Hammer leisure building in Shinbashi, Tokyo. Individual rooms use Finnish sauna stones for self-service loyly and each opens onto its own cold plunge. Rooms are booked whole by the hour rather than shared on a drop-in basis.

Osaka, Japan

Osaka Sauna Desse is an urban sauna complex on Shinsaibashi's shopping street, opened in 2023 with eight themed saunas. One, Musubi, is a fully private room for families or groups, with an anteroom for food, meetings or coworking. A lounge serves its own sauna-food menu after each session.

Hamamatsu, Japan

Private Sauna .Y is a Hamamatsu private-room sauna booked by the hour. It has a chilled cold plunge, self-service löyly with aromatic oils, and an outdoor rest area for cooling down. A separate five-person VIP room and an optional massage room can also be booked.

Kumamoto, Japan

Kaminoura 307 is a fully private sauna and lodging space in central Kumamoto, booked by the room rather than sold as individual entry. It has its own cold plunge and an outdoor rest area for cooling off between rounds.

Fukuoka, Japan

Sauna Sakurado is a six-room private sauna building in central Hakata. Each room is booked by the hour, with a Finnish wood-stone heater, self-service herbal löyly and a deep soft-water cold plunge. A first visit needs no membership, and a ground-floor cafe-bar is open to anyone.

Tokyo, Japan

Private Sauna Suite Tribal is a fully private sauna two minutes' walk from Shinjuku station, booked by the room rather than the person. Each Finnish-style room is self-löyly, so guests control the heat and choose from a rotating aroma selection, then cool off under an overhead shower. Rooms come in single and two-person sizes.

Funabashi, Japan

Re: Private Sauna is a private-room sauna in Funabashi, booked by the hour. Each soundproofed room holds a Finnish-style sauna with self-service löyly and a cold shower for cooling down. The lounge doubles as a cafe, and herbal löyly or whisking sessions can be added to a booking.

Yokohama, Japan

A fully private, Finnish-style sauna room booked by the hour near Tamaplaza station, one of three ROKU SAUNA locations. Each room has its own löyly control and a cold bath or cold shower. An infinity chair completes the cool-down.

Tokyo, Japan

SAUNA & co is a private room sauna in Kuramae, Tokyo, with self-service löyly and an ice-chilled cold plunge. Rooms take up to three people, and mixed genders wear swimwear together. The space adjoins a café and small hostel.

Nishinomiya, Japan

Sauna Kurakuen is a private-room sauna in Nishinomiya, paired with a small bonsai display inside the same space. It opened in March 2024 as the city's first private sauna bookable by mixed-gender groups. Hours and pricing are managed through its own booking system rather than posted publicly.

Tokyo, Japan

A private, reservation-only sauna in Ryogoku with two bookable rooms, Kiri and Sora. Each pairs a löyly-style stove with its own cold plunge and a cold-water head splash. Sessions can be booked mixed-gender, with swimwear required.

Tokyo, Japan

Sauna OOO in Higashi-Nihonbashi is a private-room sauna built around small-group sessions rather than solo visits. Rooms are booked online and hold up to three people at a shared rate, with extra guests admitted beyond that.

Kawanehon, Japan

Trip Train is a private-hire sauna at Sumatakyo hot spring in Kawanehon, with two cabins: Metsa and Maa. Metsa takes at least two people and includes houjicha aufguss and a fire pit. Maa is the simpler, more affordable option, open to a single guest.

Seki, Japan

Sauna Villa Itadori is a whole-villa rental on the banks of the Itadori river in Seki, taking one group a day. A cypress-built container sauna and a cold plunge run on natural groundwater from the property. The stay also includes an indoor bath, a covered barbecue area and a pizza oven.

Tokyo, Japan

Sauna XX Meguro is a men-only drop-in sauna in Tokyo. Booking and payment run through its own app rather than a membership. A real-time occupancy counter lets guests check availability before arriving, so there is rarely a wait.

Tokyo, Japan

Takanawa Saunas sits inside the Takanawa Gateway City development, built around a timetable of retreat programmes rather than a single löyly session. Men's and women's floors each run their own schedule of aufguss and sound-retreat sessions. It also has two cold-plunge temperatures, a hot bath, and a private room for whisking or group hire.

Yamanakako, Japan

Shizuku is a ryokan on the shore of Lake Yamanaka. Every guest room has its own Nordic-style dry sauna, cold plunge and a view toward Mount Fuji. Day-use bathing is also available, covering the communal bath, open-air bath, sauna and cold plunge.

Tokyo, Japan

Sola Spa's Shinjuku branch sits below street level in Kabukicho, a short walk from the station. A high-temperature sauna is the draw, alongside bathing areas and lockable private rest booths for longer stays. Amenities run from toiletries to phone chargers, so a visit needs nothing brought from home.

Tokyo, Japan

Solo Sauna tune is a private-room sauna in Kagurazaka. Each booking includes the sauna, cold plunge and rest area within one enclosed space. The Finnish-style stove is fired for self-timed löyly, and rooms come in single and small-group sizes.

Kawaguchi, Japan

SOLO37 is a solo-focused private sauna near Kawaguchi station, with fully enclosed rooms for one to three guests. Each room has a cold plunge and self-served löyly, plus a bench long enough to lie down on. A women-only room and a shared-use VIP room are also available.

Kumamoto, Japan

Somari is a private sauna and stone spa in Kumamoto, with ten individual rooms from solo to four-person suites. The cold plunge and showers run on natural mineral groundwater. Larger rooms add oxygen capsules and a barbecue grill.

Rifu, Japan

Sou. is a whole-building sauna and stay inside a campground in Rifu, Miyagi, hired by one group at a time. Its Finnish sauna runs on a Narvi stove, paired with a natural-spring cold plunge and forest-view loungers for cooling down. A day-use private sauna plan is also bookable outside overnight stays.

Tokyo, Japan

SPA:BLIC is a Japanese-style sauna house in Akasaka, built around two rooms. One holds a steady humidity through an automated löyly system, the other a nine-person room for self-poured löyly over lava stone. Sunken hot and cold tubs sit beneath a high ceiling, with a private-room sauna and overnight stays on offer.

Tokyo, Japan

Sugoisauna's Gotanda branch is a men-only private sauna suite a short walk from Gotanda station. It is booked by the room through the operator's own app. Marketing describes an intense, volcanic-rock heat source developed with the group's skincare partner Esthe Pro Labo.

Nikko, Japan

Sustaina Sauna is a one-group, private-hire wood-fired sauna at a fixed site in Kiwadashima, Nikko. Booking covers the whole cabin for up to eight people, with a self-service löyly and an outdoor rest deck.

Tokyo, Japan

Sway is a private-room sauna in Minami-Aoyama, Tokyo, booked by the hour rather than shared with strangers. Each of its four rooms has its own Finnish stove, self-service aufguss and cold plunge. Two rooms allow mixed-gender use in swimwear, and a women-only powder room is available after checkout.

Sagamihara, Japan

A fixed tent sauna site on the banks of the Dochi River, ninety minutes from central Tokyo. Each visit is a private booking for one wood-fired tent. River water supplies the cold plunge, with space to barbecue alongside.

Tokyo, Japan

The Class. is a private-room sauna club in Ebisu, built around a proprietary lava-rock sauna held around 65 degrees Celsius with automatic löyly. A fifteen-degree cold plunge and dedicated rest beds follow in the same room. Visitors can book a room without joining, alongside a membership tier for regulars.

Tokyo, Japan

Tokyo Harajuku Jingumae Sauna is a private-hire Finnish sauna in Shibuya, a short walk from Meiji Shrine's wooded grounds. The cypress-lined room runs 96 to 100C, with Finnish sauna stones for self-service loyly. The whole room is booked online rather than shared on a drop-in basis.

Osaka, Japan

toto is a fully private room sauna in Osaka's Minami-Semba, booked by appointment rather than shared with other guests. Its two rooms each pair a self-serve löyly stove with a chiller-cooled cold plunge, plus a private lounge for the cool-down between rounds. Amenities and towels are supplied, so guests can arrive empty-handed.

Shizuoka, Japan

Umegashima Drive-In & Sauna Villa occupies a former roadside diner's site beside a waterfall in the mountains above Shizuoka. Two private villas are on offer, one a Japanese-style room warmed by a German-made stove, the other a Western-style room heated by wood. Both draw their cold plunge from the headwaters of the Abe river.

Tokyo, Japan

Yksi Sauna & Stay pairs fully private sauna suites with a small attached hotel in Nishi-Shinjuku. Each suite holds its own change area, sauna, cold plunge and rest space, heated by a genuine Finnish stove with self-service löyly. A rooftop glamping deck adds an outdoor lounge for staying guests.