JAPAN'S BEST-DESIGNED SAUNAS7 saunas
Hot-spring saunas inside Tokyo and Osaka
You don't have to leave the city for a natural hot spring. Big-city spas in Tokyo and Osaka that pair their own spring water with a sauna — some open all night, some a short ride from the airport.
Natural hot spring and a 100°C sauna at Tokyo Dome City
A 24-hour hot spring and sauna in Kabukicho
An amber natural hot spring and a tiered stadium sauna
A double-stove sauna and a mugwort steam sauna
A 24-hour natural hot spring, 15 minutes by car from Haneda Airport
A garden-view bath and auto-löyly by Bentencho Station
An 8th-floor outdoor bath and an auto-löyly tower sauna
Planning a visit
Hours, cold baths and tattoo rules for these 7 saunas
Nearest stations: Korakuen, Sugamo, Heiwajima, Omori, Bentencho.
| Sauna | Area | Hours | Cold bath | Tattoos |
|---|---|---|---|---|
| Spa LaQua | Korakuen | 11:00 to 9:00 the next morning (last entry 8:00) | Men about 17°C and 22°C / women about 22°C | Not allowed — the official site says people with… |
| Thermae-yu Shinjuku | Kabukicho | 24 hours, open every day | About 17 °C | Rules differ: men who live in Japan with tattoos… |
| Tokyo Somei Onsen SAKURA | Komagome | 10:00–23:00 (reception closes 22:30) | — | Not allowed, whatever the size. |
| Rakutenchi Spa | Kinshicho | — | — | — |
| Natural Hot Spring Heiwajima | Heiwajima | 24 hours (baths cleaned 2:30–9:30) | — | Not allowed in principle — but if your tattoo can… |
| Solaniwa Onsen Osaka Bay Tower | Bentencho | 11:00–23:00 (last entry 22:00); morning bath 6:00–9:30 | — | Not allowed in principle — but if your tattoo can… |
| Natural Hot Spring Naniwa no Yu | Tenjinbashi | Weekdays 10:00–25:00, weekends & holidays 8:00–25:00 (last… | Groundwater (with vibration) | Not allowed — tattoos of any kind, including… |
From each official website. “—” means the official information we checked does not say.
Questions visitors ask
Which saunas in this collection are open 24 hours?
Thermae-yu Shinjuku, Natural Hot Spring Heiwajima are open 24 hours, according to their official hours. Some close the baths for cleaning for a short time.
Which saunas in this collection stay open after midnight?
Natural Hot Spring Naniwa no Yu (Weekdays 10:00–25:00, weekends & holidays…).
Can I go in with tattoos at the saunas in this collection?
Spa LaQua: Not allowed — the official site says people with tattoos or body art (including paint and…; Thermae-yu Shinjuku: Rules differ: men who live in Japan with tattoos of any size cannot enter; foreign…; Tokyo Somei Onsen SAKURA: Not allowed, whatever the size.; Natural Hot Spring Heiwajima: Not allowed in principle — but if your tattoo can be covered with up to four of the…; Solaniwa Onsen Osaka Bay Tower: Not allowed in principle — but if your tattoo can be completely covered with the cover…; and 1 more in the table above. For the others, check the official website or ask before you go.
Which saunas in this collection have a place to rest outdoors?
Natural Hot Spring Naniwa no Yu have an outdoor rest area, according to their official websites.
Can I pay without cash at the saunas in this collection?
Spa LaQua: Credit cards (JCB, Visa, Mastercard, Amex, UnionPay), iD, QUICPay, Edy, Suica/PASMO…; Thermae-yu Shinjuku: Cash, credit cards, QUICPay, transport IC cards, PayPay, LINE Pay, Alipay and UnionPay.; Solaniwa Onsen Osaka Bay Tower: Cash, major credit cards (Visa, Mastercard, JCB, AMEX, Diners, Discover, UnionPay) and…. Other places do not state payment methods on their official websites.
What are the nearest stations for the saunas in this collection?
The stations mentioned most often are Korakuen Station, Sugamo Station, Heiwajima Station, Omori Station, Bentencho Station. Every sauna page has directions and the address in Japanese.
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