Onyado Nono Asakusa
Good to know before you go
- Getting there
- Asakusa Station · 4 min walk (Tsukuba Express)
- Hours
- Check-in 15:00, check-out 11:00; baths open 15:00–10:00 next day (sauna closed 01:00–05:00)
- Admission
- Hotel guests only (no drop-in public bath admission; guest breakfast ¥2,500)
- Time needed
- Overnight stay (bath sessions typically 45–60 min)
- Best time to go
- 05:00–07:00, when bath usage is light and complimentary probiotic drinks are available at the bathhouse entrance
Hours can change on holidays — check the official site before travelling.
About
Onyado Nono Asakusa is a modern, ryokan-style hotel in Tokyo's historic district, famous for its soothing natural black-water hot springs (onsen). It is worth visiting for travelers who want a traditional Japanese inn experience—complete with tatami-matted floors throughout the entire property—without leaving the convenience of the city. Expect to walk barefoot, enjoy free evening ramen, and soak in therapeutic mineral baths after a long day of sightseeing.
What Japanese guides note
Guests remove their footwear at the lobby lockers and walk barefoot or in socks across tatami flooring covering every corridor, elevator, and room. The basement hot spring, Ryoun no Yu, runs from 15:00 until 10:00 the following morning, though the sauna shuts down between 01:00 and 05:00. Visitors should note that this address at 2-7-20 Asakusa operates separately from the nearby Onyado Nono Asakusa Bettei annex down the block.
Details from local sources
- Guests store their footwear in lockers upon entering the lobby because tatami matting covers every interior floor, including corridors and elevators. [source]
- The basement bathhouse, Ryoun no Yu, draws a sodium-bicarbonate and chloride cold mineral spring with a pH of 8.21 that appears dark brown due to natural organic sediment. [source]
- The men's bathing section contains a 98°C dry sauna with a cold plunge pot, while the women's facility features a steam mist sauna without a cold plunge. [source]
- The hotel permits tattoos in the public baths only if they fit completely beneath an 8 by 10 centimeter cover seal. [source]
- Complimentary half-bowls of soy sauce ramen are served from 21:30 to 23:00, ice pops from 15:00 to 01:00, and probiotic drinks from 05:00 to 10:00. [source]
- This building opened in July 2019 at 2-7-20 Asakusa and is distinct from Onyado Nono Asakusa Bettei, which opened in January 2024 at 2-7-26 Asakusa. [source]
Insider Tip
Leave your shoes in the lobby lockers upon arrival; the entire hotel is tatami-carpeted, so you will walk in socks or barefoot.
Frequently asked
Can non-staying visitors use the onsen for day visits?
No. Ryoun no Yu does not offer drop-in public bathing tickets for day visitors. The hot spring baths, saunas, and complimentary relaxation services are restricted exclusively to registered hotel guests. Travelers seeking day-use must book a designated day-use guest room package through the hotel's reservation channels.
Are tattoos allowed in the Ryoun no Yu baths?
Tattoos are prohibited in the communal baths under hotel policy. However, guests may enter if their tattoos can be completely concealed using the complimentary 8 by 10 centimeter cover seals provided at the front desk. Guests with extensive tattoos that exceed this seal size cannot enter the public baths.
What makes the hot spring water here black?
The indoor mineral bath taps an underground sodium-bicarbonate and chloride cold mineral spring known regionally as kuroyu. Ancient plant matter and humic acids dissolved in the sediment give the water its dark brown, coffee-like hue. To prevent discoloration, the hotel supplies brown bath towels in guest rooms instead of white.
What complimentary food and drink amenities are provided?
Guests receive half-sized bowls of Yonaki Soba (soy sauce ramen) nightly between 21:30 and 23:00 in the first-floor dining area. Outside the basement bathhouse, complimentary ice pops are available from 15:00 until 01:00, and chilled lactic acid probiotic drinks are provided every morning from 05:00 until 10:00.
What is the difference between this hotel and Onyado Nono Asakusa Bettei?
This property opened in July 2019 at 2-7-20 Asakusa, featuring a dry sauna for men and a mist sauna for women. The nearby sister annex, Onyado Nono Asakusa Bettei, opened in January 2024 at 2-7-26 Asakusa and offers dry saunas and cold plunge pools for both genders.
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