温泉 · Japanese Public Baths

Tokyo Onsen & Sento Guide: How to Experience Japanese Public Baths (2025)

Hot springs, neighbourhood sento, and how to bathe like a local — etiquette explained

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One of the most rewarding — and most misunderstood — experiences in Tokyo is the public bath. Whether it's a neighborhood sento (銭湯) or a full-scale onsen resort, bathing culture is central to Japanese life. This guide tells you everything you need to know to join in confidently.

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Sento vs. Onsen — What's the Difference?

	Sento (銭湯)	Onsen (温泉)
Water source	Heated tap water	Natural hot spring water
Location	Neighborhood bathhouses, city centers	Volcanic/geothermal areas, some city hotels
Price	¥500–¥600 flat fee	¥800–¥2,500+ day use
Atmosphere	Local, no-frills, functional	Resort-like, relaxing, scenic
In Tokyo?	Yes — 400+ across the city	Yes — especially in western suburbs (Okutama, etc.)

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Bathing Etiquette — The Essential Rules

Following onsen etiquette isn't just polite — it ensures everyone's comfort and keeps the bathwater clean.

1. Wash thoroughly before entering the bath. Always sit at a washing station (with a small stool and bucket) and soap/rinse your entire body before stepping into any communal bath. This is the single most important rule.
2. No swimwear. Traditional sento and onsen are entered completely undressed. Swimwear is explicitly prohibited in most.
3. Keep your small towel out of the bath. You can bring a small modesty towel into the bathing area but it must not touch the bathwater — fold it on your head or set it aside.
4. Tattoos. Most traditional sento and onsen prohibit tattoos (a rule linked historically to yakuza associations). Facilities that welcome tattooed guests are increasing but always check in advance.
5. No phones or cameras in the bathing area.
6. Enter quietly. Keep conversation low. The bath is a place of relaxation, not socializing.
7. Rinse the washing station after use.

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Best Sento in Tokyo

Daikoku-yu (大黒湯) — Katsushika

One of Tokyo's most beautiful sento, built in 1929 with a magnificent tiled exterior and elaborate interior murals. A true living piece of Tokyo history. Very local crowd, very affordable.

• Price: ¥520
• Hours: 3pm–1am, closed Friday
• Access: 15 min walk from Keisei Tateishi Station

Kogane-yu (黄金湯) — Sumida

A beautifully renovated neighborhood sento that has become a destination for design-conscious visitors. The interior balances traditional aesthetics with modern minimalism. Craft beer bar attached.

• Price: ¥520
• Hours: 11am–2am (weekends from 8am)
• Access: Kinshicho Station (3 min walk)

Thermae-yu (テルマー湯) — Shinjuku

Central Tokyo's best-known onsen facility, open 24 hours. Uses natural hot spring water brought from Izu. Multiple indoor and outdoor baths, sauna, restaurant. Popular with tourists and locals alike.

• Price: ¥2,900 (weekdays), ¥3,200 (weekends)
• Hours: 24 hours
• Access: Kabukicho, 5 min walk from Shinjuku Station east exit
• Tattoo policy: Tattoos permitted with seal covers

Spa LaQua (スパ ラクーア) — Bunkyo

A major urban spa complex next to Tokyo Dome, using natural hot spring water sourced 1,700 meters underground. Multiple themed baths, saunas, relaxation floors, restaurants. Very tourist-friendly with English signage.

• Price: ¥2,900 (day), ¥3,900 (after 11pm)
• Hours: 11am–9am next day (effectively 24 hours)
• Access: Korakuen Station (1 min walk)

Oedo Onsen Monogatari — Odaiba (closed 2021)

The famous Edo-themed onsen resort in Odaiba closed permanently in 2021. Its spiritual successor, Yuransen, has taken over the entertainment onsen concept in Tokyo.

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Day Trip Onsen Near Tokyo

Hakone

The most popular onsen day trip from Tokyo. Dozens of ryokan and day-use facilities. The setting — mountain forests, volcanic landscape, views of Fuji — makes the bathing experience extraordinary. Tenzan Tohji-kyo and Yunessun are top picks for day visitors.

• Access: 85 min from Shinjuku by Odakyu Romancecar

Nikko Yunishigawa Onsen

Remote mountain hot spring village north of Nikko, famous for its deep gorge setting and traditional wooden ryokan. Combine with a Nikko shrine visit.

Okutama (奥多摩)

Tokyo's western wilderness — surprisingly remote mountain scenery just 90 min by train from Shinjuku. Moegi no Yu is a riverside sento/onsen with open-air baths and mountain views.

• Access: JR Ome Line to Okutama Station (90 min from Shinjuku)
• Price: ¥900

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What to Bring

• Towel — most facilities rent small and large towels (¥200–¥400). Bring your own to save money.
• Toiletries — soap and shampoo are usually provided at larger facilities, not at basic sento.
• Cash — many sento are cash-only.
• Nothing else — don't bring valuables. Lockers are provided.

How to Use a Sento — Step by Step

1. Pay the entrance fee at the counter (¥500–¥600 for sento)
2. Remove shoes and store in the shoe locker at the entrance
3. Receive a key for your changing room locker
4. Undress completely and store clothes in the locker
5. Take your small towel and toiletries to the washing area
6. Sit at a washing station — soap up and rinse thoroughly
7. Enter the bath slowly; the water is typically 40–43°C
8. Soak for 10–20 minutes; exit, cool down, repeat as desired
9. Dry off in the changing room; most facilities have hair dryers
10. Return key and exit

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Tattoo-Friendly Facilities in Tokyo

The following Tokyo facilities explicitly welcome tattooed guests:

• Thermae-yu (Shinjuku) — seal covers available
• Kogane-yu (Sumida) — tattoos welcome
• Coppice Koenji — tattoo-friendly neighborhood sento
• RAKU SPA (multiple locations) — open to tattooed guests

Always verify current policy before visiting — policies can change.

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Practical Tips

• Best time: Weekday evenings (6–9pm) for neighborhood sento; weekend mornings for resort facilities before crowds arrive
• Temperature: Japanese baths are hot — 40–43°C. Ease in slowly and exit if you feel dizzy. Hydrate before and after.
• Mixed bathing: Extremely rare in modern Tokyo. Almost all facilities have separate men's (男) and women's (女) sections.
• Post-bath drink: A cold milk from the vending machine in the changing room is an iconic Japanese bathhouse tradition. Highly recommended.

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Etiquette Goes Beyond Onsen

Bath rules are part of a wider Japanese sense of shared space. See our Tokyo Etiquette Guide for First-Timers for the full picture.