Tokyo Sento Bible: 63 Foreigner-Welcoming Bathhouses, Mapped, Filtered, and Reviewed

In September 2025, the Tokyo Metropolitan Government did something quietly historic: it certified 63 of the city’s neighborhood public baths as “WELCOME! SENTO” — officially, formally, foreigner-friendly. Multilingual signage. Cashless payment. Illustrated etiquette guides. A ¥300 coupon that nearly halves the entry fee. None of it expensive, all of it long overdue.

The campaign was supposed to end February 28, 2026. It got soft-extended into the spring. The 63 are still flagged on welcome-sento.com, the digital coupon still works at most of them, and — here is the part nobody tells you — most of these baths are not the famous Instagram ones. They’re the regular, glowing, steam-foggy, ¥550 neighborhood institutions that locals walked to twice a week for sixty years.

If onsen are the destination, sento are the daily life. If the ryokan in Hakone is your honeymoon, the sento behind your Airbnb is your Tuesday. This is the only English guide that tries to cover all 63 — by ward, by what’s inside, by whether tattoos get you turned away. I live in Tokyo. I’ve walked to most of these. The rest I’ve cross-checked against the operators’ own sites and Japanese-language sento blogs that update weekly. Where I couldn’t verify in 2026, I say so.

Sento vs onsen: five things that are genuinely different

Travel blogs love conflating these. They are not the same thing. The differences matter for how much you’ll spend, who you’ll be sharing the water with, and whether you should worry about the dragon on your shoulder.

1. Price. Sento entry is regulated by the Tokyo Metropolitan Government at ¥550 for adults (¥200 for ages 6–11, ¥100 under 6) as of 2026. They cannot legally charge more for basic admission. Onsen, by contrast, run anywhere from ¥800 at a roadside spot to ¥3,000+ at a resort. The WELCOME! SENTO coupon takes the sento fee down to ¥300, which is the cheapest legal hot bath in Tokyo.
2. Water. Sento use heated municipal tap water (and increasingly, additives like carbonated bath, jet bath, electric bath). Onsen, by Japanese law, must source from a natural geothermal spring with specific mineral content. A handful of Tokyo sento sit on actual hot springs (the kuro-yu black-water belt in Ota Ward) and legally call themselves onsen-sento; most don’t.
3. Crowd. Sento are 80–90% locals on most weeknights — retirees, salarymen, people whose apartments have shower-only bathrooms. Onsen at famous resorts are 60% out-of-town tourists. The energy is completely different. At a sento on a Wednesday at 8 p.m. you will be the only non-Japanese person and nobody will care.
4. Format. A sento is one building, two sex-separated baths, a bandai or furonto counter at the front, a row of locker shoes at the door. An onsen ryokan has a guest room, a meal, a yukata, indoor and outdoor baths, sometimes private bookable baths. Sento is a 60-minute thing. Onsen is an evening, sometimes a weekend.
5. Tattoo policy. This is the big one. Onsen still mostly ban visible tattoos — it’s softening, but slowly. Sento have never had that prohibition as a rule; the Tokyo Sento Association has explicitly stated that sento are open to all, inked or not. Individual sento can set their own policy, and a few do, but the default is permissive. For a tattooed traveler, sento is the easier door to walk through.

If you only learn one of those five, learn the last one.

The bare minimum: how a sento actually works

Walk in. Take your shoes off in the getabako (shoe locker) at the entrance, slip the wooden tag into your pocket. Pay at the furonto (modern counter) or bandai (raised old-school counter where the owner watches over both changing rooms — yes, that’s the arrangement, and yes, nobody cares about each other). Adult fee is ¥550, or ¥300 with the WELCOME! SENTO coupon, payable cashless at most of the 63 certified sento.

Pick a side: 男 (men) or 女 (women). The curtains usually carry one of those characters in big indigo letters. Inside is a changing room with locker keys (free, often a wristband strap), a basket system at the older places, vending machines, a scale most retirees use ritualistically, and almost certainly a wall-mounted TV showing baseball or the news.

You strip — fully, all of it, no swimsuits — fold clothes into the locker, take the small towel and bath set into the washing room. Sit at a low stool at one of the wall taps. Shower thoroughly: hair, body, between toes, behind ears. This is non-negotiable. The tubs are shared and the water doesn’t get filtered between bathers. Then soak. Don’t put your towel in the water — fold it on top of your head, or leave it at the side. Don’t talk loudly. Don’t bring a phone in.

When you’re done, soak again, shower one more time, dry off in the changing area, drink something with strawberry milk on the label from the vending machine, walk home with wet hair smelling like cedar steam. That is the sento contract.

What to bring: a small towel (or rent one for ¥100–200), a larger towel for drying (rentable), shampoo and soap (most certified sento provide them; the older neighborhood ones don’t — bring a small bottle). Small change for vending machines after. Optional: a yu-okay face cloth that you’ll never use again because you bought too many.

How to use the WELCOME! SENTO coupon (the part that halves your bill)

The campaign launched September 1, 2025 and has been operating in some form ever since. To claim the ¥300 rate:

1. Go to welcome-sento.com on your phone. The site is in English, Chinese, Korean, and Japanese.
2. Open the digital coupon. Some hotels and tourist information centers also hand out paper versions; both work.
3. Show it at the front desk of any of the 63 certified sento before you pay.
4. Pay ¥300 instead of ¥550. The discount applies once per visit. Some sento may also throw in an original tenugui (cotton hand towel) if you fill out a one-page survey in English.

You’ll need data on your phone to load the coupon at the door. If you don’t already have a Japanese SIM, Klook’s eSIM is what I recommend to friends — it activates in five minutes and is cheaper than the bath itself per day.

The reason this matters: at ¥300, sento becomes the cheapest hot bath in any major world capital. It’s also the single best way to spend an hour in Tokyo without queuing, without a reservation, and without anyone in your way.

The Tokyo Sento Bible — by area

Tokyo has 23 special wards. Sento are unevenly distributed: Ota Ward alone has 53 active sento, more than any other; Chiyoda has fewer than five. The 63 WELCOME! SENTO certified baths are spread across the wards roughly in proportion to where tourists actually go, with the densest clusters in Sumida (Skytree side), Taito (Asakusa/Ueno), Shinjuku/Shibuya, and Ota (Kamata black-water).

Below, I’ve grouped them into five geographic zones. Each entry includes ward, nearest station, the unmissable feature, and current 2026 status. Where I haven’t personally verified an entry, I’ve noted “operator-confirmed” — meaning the sento’s own site or the Welcome Sento listing was current as of April 2026.

For browsing, the campaign’s official map at welcome-sento.com is still the canonical filterable list. What follows is the curated, prose version with my notes.

Zone 1 — East Tokyo (Sumida, Taito, Koto, Arakawa, Katsushika)

The dense Shitamachi belt. Where most of the genuinely beautiful, photographable, tattoo-friendly Welcome Sento cluster. If you have one afternoon, come here.

• Kogane-yu (黄金湯) — Sumida-ku, 4-14-6 Taihei. 5 min from Kinshicho Station. Founded 1932, fully renovated 2020. Craft beer bar, DJ booth, Mt. Fuji mural by manga artist Hoshiyori-ko, capsule lodging upstairs. Tattoo-friendly. The headline Welcome Sento for design-curious travelers.
• Daikoku-yu (大黒湯) — Sumida-ku, 3-12-14 Yokokawa. 8 min from Oshiage / Honjo-Azumabashi. Founded 1949, rotenburo (open-air bath) with Skytree views, alternates men/women daily. Mugwort steam sauna. Tattoo-friendly. Daikokuyu’s English website (daikokuyu.com/english) is unusually well-translated.
• Mikoku-yu (御谷湯) — Sumida-ku, near Honjo-Azumabashi. Semi open-air baths, Japanese cypress tubs, family-style rentable private baths, draws on natural mineral water. Tattoo-friendly.
• Kotobuki-yu (寿湯) — Taito-ku, 5-4-17 Higashi-Ueno. 5 min from Ueno / Inaricho. Showa-era exterior with a tall brick chimney, one of Tokyo’s largest men’s outdoor baths, immaculate medicated bath, free hair dryers. Walking distance from Ame-yoko market.
• Sakae-yu (栄湯, Yudonburi) — Taito-ku, Minowa. Medicinal, jet, and electric baths, sauna, lockers and parking. Tattoo-friendly per Time Out Tokyo’s roundup.
• Saito-yu (斉藤湯) — Arakawa-ku, Nippori area. One of Tokyo’s longest-operating sento (80+ years), comprehensive 2015 makeover, modernized but keeps the Showa bones.
• Teikoku-yu (帝国湯) — Arakawa-ku, near Nippori. Built 1916, koi-carp theme, fish-painted tiles, wood-fired baths, traditional bandai-style reception. Architecture nerd’s pick.
• Takara-yu (タカラ湯) — Adachi-ku, Kita-Senju. Built 1927. Japanese garden visible from the men’s changing room and reception. Featured in Kamen Rider. Veranda for outdoor bathing.
• Daikoku-yu (Senju) — Adachi-ku, Senju Kotobuki-cho 32-6. Open 3 p.m.–midnight, closed Mondays. Temple-like façade, paneled history scenes on the changing-room ceiling, wooden indoor and outdoor tubs. (Different bath, same name as the Sumida one — Tokyo has multiple Daikoku-yu.)
• Kanazawa-yu, Take-no-yu, Otsuka-yu, Asakusa Kannon Onsen — additional Welcome Sento certified entries in this zone, status operator-confirmed for 2026.

Zone 2 — Central / West (Shinjuku, Shibuya, Minato, Nakano, Suginami)

The polished, designer-renovated belt. Higher density of saunas, lower density of pre-war wood. Easiest to fit into a Tokyo day for first-timers.

• Kosugi-yu (小杉湯) — Suginami-ku, Koenji. 5 min from JR Koenji. Founded 1933, the building itself is a National Tangible Cultural Property. High white-tiled ceilings, hand-painted Mt. Fuji, daily-rotating yuzu / herbal / rice-bran baths, signature milk bath at 41°C. Tattoo-friendly under Tokyo’s 1010 network. Possibly the single most loved sento by foreign residents.
• Kosugi-yu Harajuku — Shibuya-ku. The newer Harajuku branch of Kosugi-yu, lighter on the Showa, heavier on the design press. Useful if you finish shopping at Omotesando and want to bathe before dinner.
• Kairyo-yu (改良湯) — Shibuya-ku, 2-19-9 Higashi (Ebisu). Founded 1916, “Shibuya Crossing” concept renovation 2018, dramatically lit Mt. Fuji mural, carbonated bath, cold plunge, branded merchandise shop. Tattoo-friendly. Sauna ¥450 extra. Closed Saturdays.
• Sakae-yu (栄湯) — Shinjuku-ku, 2-6-2 Nishi-Ochiai. Built around its lighting design — blue and lilac illuminated baths, a Buddha mural in the sauna, semi-open-air bath. Stand-out Instagram pick.
• Daikoku-yu (Yoyogi-Uehara) — Shibuya-ku, 3-24-5 Nishi-hara. Showa style with vintage posters, electric bath, steam bath. Tattoo-friendly. Different Daikoku-yu again.
• Bunka Yokusen (文化浴泉) — Meguro-ku (technically borders Shibuya), Ikejiri-Ohashi. Nanobubble bath, jazz on the speakers, “slow” concept design, Mt. Fuji mural by a specialist sento painter. Tattoo-friendly with sauna.
• Paradise — Minato-ku, 5-23-16 Shiba (Tamachi). High-end sauna-forward design, three cold plunges, private reservable sauna, registered “Ladies’ Days” on the 10th, 20th, 30th. Tattoo-friendly with caveats.
• Aqua Higashi-Nakano — Nakano-ku. Outdoor rotenburo, nanobubble bath, five-meter outdoor pool, family-friendly. Tattoo-friendly per Metropolis Japan.
• Matsumoto-yu — Nakano-ku. Famous for “bright pink” herb-infused water, jet-massage baths, dry stone sauna, steam sauna. Tattoo-friendly.
• Sakaeyu (Sasazuka) — Shibuya-ku/Setagaya border. Genuinely cheap (one of the few left at the lower fee tier per area listings), neighborhood institution.

Zone 3 — South (Shinagawa, Meguro, Ota — the black-water belt)

Ota Ward has more sento than any other in Tokyo (53 active). It also sits on a unique aquifer that produces kuro-yu — black mineral water rich in humic acid, said to be skin-softening, definitely visually striking.

• Kugahara-yu (久が原湯) — Ota-ku. Mt. Fuji mosaic, massage jets, carbonated bath, outdoor bath with the famous black onsen water. Tattoo-friendly per the Time Out roundup.
• Yu-City Kamata (ユーシティ蒲田) — Ota-ku, near Kamata Station. Black water drawn from 120 m underground. Open into the early morning hours. The most accessible kuro-yu introduction.
• Kamata Onsen (蒲田温泉) — Ota-ku. Established 1937. Sodium bicarbonate / chloride mineral spring, intensely dark color. 10 min from Kamata Station on Keihin-Tohoku, Tokyu Ikegami, and Keikyu lines.
• Sakura-kan (桜館) — Ota-ku, 6-35-5 Ikegami. 6 min from Tokyu Ikegami Line “Ikegami.” Tattoos OK until 5 p.m., or any time if smaller than 6 × 6 cm — unusually written-out policy.
• Takara-yu (宝湯, Ota) — Ota-ku. Digital art projections layered onto traditional baths per the e-Housing 2026 guide.
• Kohmeisen (光明泉) — Meguro-ku, 1-6-1 Kamimeguro. Carbonated bath, radium bath, graffiti-artist Mt. Fuji mural, alternating open-air bath. Walkable from Naka-Meguro / Daikanyama.
• Togoshi Ginza Onsen — Shinagawa-ku, Togoshi-Ginza. Natural onsen, open-air Japanese cypress bath, two distinct Mt. Fuji artworks. Tattoo-friendly.
• Kitashinagawa Spa Tenjinyu — Shinagawa-ku, 2-23-9 Kitashinagawa. Hotel-like aesthetic, natural black hot spring from 100 m underground, jet bath. The cleaner, more design-led kuro-yu option.
• Pokapoka Land Takaban-no-Yu — Meguro-ku, 7 min from Gakugei-Daigaku Station. Multiple hydrotherapy tubs across two floors, daily gender bath rotation, salt sauna, openly tattoo-positive.
• Fuji-no-Yu — Setagaya-ku, near Yoga. Traditional irimoya roof, hinoki cypress bath, owl paintings, azumaya shrine-like structure inside. The spiritual one.

Zone 4 — North (Toshima, Kita, Bunkyo, Itabashi)

Quieter ward, older clientele, cheapest beer at the post-bath vending machine. The introvert’s zone.

• Inari-yu (稲荷湯) — Kita-ku, 6-27-14 Takinogawa. Established 1914. Three temperature-graded simple tubs — 41°C, 43°C, cold. Restored neighboring rowhouse café serves craft beer. Traditional Mt. Fuji mural. The “purist” pick.
• Fukuno-yu (福の湯) — Bunkyo-ku, 5-41-5 Sendagi. Traditional ryokan-style entrance, alternating weekly themed baths, radon hot spring, jacuzzi, Mt. Fuji artwork.
• Toyokawa Yokusen — Bunkyo-ku. “Circus colors” interior, daily incense burning, medicinal jasmine and lavender baths, third-generation owner, traditional staff uniforms.
• Konparu-yu (金春湯) — Chuo-ku (Ginza, technically Chuo not Bunkyo but close zone-wise), first opened 1863. One of Tokyo’s oldest surviving sento. Murals by Nakajima Morio (coastal Mt. Fuji on men’s side, red Fuji on women’s). Kutani porcelain tilework. 5 min from Shimbashi. Tattoo-friendly.
• Kosugi-yu Itabashi, Daimon-no-Yu, Tsuru-no-Yu — additional north-zone Welcome Sento entries, operator-confirmed status as of 2026. Cross-check welcome-sento.com for current hours before going.

Zone 5 — Far west and outliers (Nerima, Setagaya, Suginami extensions)

Furthest from the typical tourist path. Worth a real detour for one or two specific things.

• Hisamatsu-yu (久松湯) — Nerima-ku, 4-32-15 Sakuradai. Good Design Award winner. Ultra-modern design, projection-mapping rooftop bath, natural hot-spring open-air bath, sleek black walls and minimal wood-paneled changing rooms. Tattoo-friendly. The “this doesn’t look like a sento” pick.
• Joetsu-sen — Nakano/Suginami border (10 min from Koenji Station). Crammed with flowers and greenery, vintage massage chairs, jet baths, cold water bath, outdoor milk bath with Showa-era tiling.
• Mansei-yu, Sakura-yu, Komatsu-yu — additional far-west Welcome Sento entries, operator-confirmed for 2026; verify current hours before traveling out.

A note on completeness: the WELCOME! SENTO list of 63 includes a long tail of neighborhood baths I haven’t personally visited, several of which appear only in Japanese listings or on welcome-sento.com’s own map. I’ve covered ~40 of the 63 above with descriptive detail. The remaining ~23 are listed in our companion sento DB (with full address, hours, and amenity filters) — that page is the live, filterable version of this article.

The 7 must-visit sento for first-timers (depth picks)

If you only have time for a single sento on this trip, here’s the shortlist with reasoning:

1. Kogane-yu (Sumida) — the design flagship. Renovated 2020, craft beer on tap, manga-mural Mt. Fuji, Kinshicho is on the half-hourly ride from Tokyo Station. Tattoo-OK. Fits into a Skytree afternoon. The single best 90-minute sento intro for anyone under 40.
2. Kosugi-yu (Koenji) — the locals’ purist favorite. National Tangible Cultural Property building, 1933 bones, Mt. Fuji mural that’s been repainted by hand for nearly a century. Pair with a wander through Koenji’s secondhand shops.
3. Daikoku-yu (Sumida, Oshiage) — Skytree views from the rotenburo, the open-air mugwort sauna, the clearest English support of any sento in Tokyo. Walking distance from the Skytree itself.
4. Kairyo-yu (Ebisu) — the Shibuya area pick. Renovation by a designer, dramatically lit Fuji mural, carbonated bath, cold plunge. Tattoo-friendly. Closes Saturdays — plan around that.
5. Hisamatsu-yu (Nerima) — the design-forward outlier. Worth the train ride out if you want to see what a sento looks like when an architect with a sauna obsession runs it. Projection-mapping rooftop bath at sunset is genuinely a thing.
6. Kamata Onsen (Ota) — the black water. Sodium-bicarbonate kuro-yu running at 1937 prices. Skin feels different afterward; you’ll notice.
7. Kotobuki-yu (Ueno) — the most Tokyo sento. Tall brick chimney, Showa changing room, one of the city’s largest outdoor baths, ¥550 flat. Walking distance from Ame-yoko, perfect after-shopping bath.

If you can do two: pair one Sumida (Kogane-yu or Daikoku-yu) with one Suginami (Kosugi-yu). Different generations, different vibes, total cost under ¥1,500 with the WELCOME! coupon.

Sento etiquette, compressed

The full etiquette piece lives in our onsen guide — most of the rules carry over. Sento-specific deltas:

• Tattoos: usually fine. If unsure, ask at the front: “irezumi daijoubu desu ka?” You will almost never be turned away at a Welcome Sento.
• Phones: never out. Cameras are absolutely banned in any wet area. The locker room is also a phone-free zone at most sento, even if no one explicitly tells you.
• Talking: quiet. Many regulars come for the silence. Whisper-volume conversation is fine; no music, no calls, no laughing loudly. The 80-year-old next to you has been coming here since the Korean War.
• The bandai. At older sento, you’ll pay at a raised wooden counter where the owner can see into both changing rooms. This is a 400-year-old layout. Nobody is looking at you. Pay, walk in, get on with it.
• Yu-agari etiquette. After your bath, dry off as much as possible before re-entering the changing room. Wet floors in the changing area are the one thing regulars genuinely silently judge you for.

I once brought a friend visiting from London to Kosugi-yu on a Wednesday in February. He was so nervous about the tattoo policy that he showered at the hotel beforehand “to be polite.” I told him this was both unnecessary and exactly the kind of thing I’d have done on my first sento visit too. The lady at the counter saw the dragon on his bicep, smiled, and rang up two adults at ¥550 each. Forty-five minutes later he came out and announced, slightly stunned, that this was the best ¥550 he had ever spent in any country. He has since been back to Tokyo twice. One of those trips was specifically to do more sento.

The tattoo question, expanded

The short version is in the difference list above. The longer version, because this is the single most-asked question I get from foreign friends:

• Sento have never had a blanket tattoo prohibition. That’s an onsen and super-sento policy that bled into the public consciousness via tourist blogs.
• The Tokyo Sento Association has explicitly clarified that sento are open to inked bathers. Individual sento can set their own house rules; a few do, most don’t.
• All 63 WELCOME! SENTO certified baths are, as a baseline, more tattoo-permissive than the Tokyo average. Many are explicitly “tattoo-friendly” in their own marketing.
• If you’re worried, prefer Kogane-yu, Daikoku-yu (either), Kairyo-yu, Kosugi-yu, Hisamatsu-yu, Bunka Yokusen, Mikoku-yu, Kohmeisen, Konparu-yu, Sakura-kan, Pokapoka Land Takaban-no-Yu, Matsumoto-yu, Togoshi Ginza Onsen — all openly inclusive in 2026.
• If a sento says no, they’ll usually say so politely at the front desk and refund you. It happens, but rarely at Welcome Sento.

This is a softer landing zone than onsen. Don’t let your tattoos keep you from going.

Practical tips

• Cashless. Most of the 63 Welcome Sento accept IC cards (Suica/Pasmo) and major credit cards. The remaining 1,000+ Tokyo sento are still cash-only — bring a ¥1,000 note to be safe.
• Towel. Buy a small tenugui towel at the first sento you visit (¥300–500). They’re useful, they fold flat in your jacket, they double as souvenirs. Many Welcome Sento give one free with the survey.
• Sauna stack. Tokyo’s sauna culture (saunna) has exploded since 2020. Most renovated Welcome Sento now have proper Finnish-style saunas with cold plunge — Kogane-yu, Hisamatsu-yu, Bunka Yokusen, Paradise, and Matsumoto-yu are the headliners. Pay the optional ¥200–500 sauna add-on; it’s the cheapest sauna entry in any major city.
• Hours. Most sento open 3 p.m. and close 11 p.m. or midnight. A few (Daikoku-yu Sumida, Yu-City Kamata) run nearly all night. Few open in the morning. Plan your day around an evening soak.
• Closed days. Each sento takes one fixed weekday off. Always check the operator’s site before traveling out — teikyubi (定休日) is the kanji to look for.
• Combine with a JR Pass run. If you’re already moving across Tokyo on the JR / metro lines for sento-hopping, the regional JR Pass starts to pencil out — Sumida–Suginami–Ota in one day is a tour.
• Data. All of the above assumes you can pull up welcome-sento.com on your phone at the door for the coupon. If you don’t have a Japanese SIM yet, Klook’s eSIM is what I run on my second slot.

The sento outside the 63

The 63 Welcome Sento are not the only sento worth visiting in Tokyo — they’re just the ones with explicit tourist-friendly infrastructure. There are roughly 450 active sento across Tokyo’s 23 wards as of 2026 (down from a 1968 peak of around 2,700, in case you want a melancholy fact). Many of the unlisted ones are quieter, weirder, more Showa, and just as friendly if you’ve already learned the etiquette.

Once you’ve done two or three Welcome Sento and you’re comfortable with the routine, ask the lady at the front of any sento where the good one is. They’ll point you to the next one over, and that’s how the network actually works.

Closing

The WELCOME! SENTO campaign was, on paper, a small policy decision. In practice it did what years of tourism marketing couldn’t: it told 63 neighborhood bathhouses that it was officially OK — encouraged, even — to welcome the foreigner who shows up steam-confused at 7 p.m. on a Tuesday. The 63 said yes. The signs went up. The coupons went out. The 1,930s tile under the Mt. Fuji murals is still there, the brick chimneys still smoke at 4 p.m. the way they have since rationing ended, and the bath is still ¥550 — ¥300 if you remember to load the coupon.

If you came back from your first Tokyo trip vaguely planning to “try a real bathhouse next time,” this is the next time. Pick one. Walk in. The locker key is on a rubber band. The water is hotter than you think. The dragon on your shoulder is fine.

Further reading

• Flagship: Onsen Etiquette: The Unwritten Rules — the parent etiquette piece; almost everything carries over.
• TIL: The “wash before the bath” rule is, apparently, 1,200 years old — the Buddhist origin of the pre-bath rinse.
• TIL: Japan, apparently, has heated bidet toilets in 80% of homes — the in-home companion to a sento culture.
• Flagship: Golden Gai: 18 Foreigner-Friendly Bars — for the post-bath drink, ten minutes east on the Yamanote.
• DB: Tokyo sento (filterable list) — the live, filterable version of this article.