First-time onsen guide 2026: how to bathe, tattoo rules, and what it actually costs

Onsen — Japanese natural hot springs — are one of the most-anticipated and most-cultural experiences for foreign tourists in Japan. Etiquette is genuinely strict, the gender-separated bathing is non-negotiable at traditional onsen, and the tattoo question is a real issue that has been slowly evolving. The basic process: undress completely in the changing room, wash thoroughly while seated at the row of showers, then enter the hot bath. Most important rules: no swimsuits, no towels in the water, no phones, no soap in the bath itself, and bathe completely naked. Costs range widely: ¥500 for a city sento (public bath), ¥1,000-¥1,500 for a tourist-friendly onsen day trip, ¥3,000+ for a high-end day-use onsen, and ¥15,000-¥30,000/night for ryokan with full kaiseki + onsen package.

TL;DR

• Cost: ¥500 (city sento) / ¥1,000-¥3,000 (typical day onsen) / ¥15,000-¥30,000 (ryokan w/ onsen + dinner)
• Process: undress fully → shower seated → enter bath naked → soak 10-15 min → repeat or exit
• Required: complete nudity (no swimsuits), wash before entering, no soap/shampoo in the bath itself
• Forbidden: phones, towels in the water, splashing, loud talking, washing inside the bath
• Tattoos: traditional onsen = often refused; tattoo-friendly onsen growing in count; check before going
• What to bring: small towel (washcloth), modesty towel (optional, for walking), changing clothes
• Time needed: 1-2 hours for a complete experience

What "onsen" actually means

Onsen (温泉, "hot spring") is a natural hot spring bath, traditionally from volcanic geothermal water. The water has specific mineral compositions and health benefits associated with it.

Two related but distinct things:

• Onsen (温泉): natural hot spring, has special mineral content
• Sento (銭湯): traditional public bath with regular heated water, often city-based

Both share the same etiquette and rules. The difference is the water source.

A ryokan (旅館) is a traditional Japanese inn that typically includes onsen access. A ryokan stay = sleeping on a futon + sliding paper doors + multi-course kaiseki dinner + onsen bath included.

The cost spectrum

The basic process (step-by-step)

Step 1: Arrive and enter

You arrive at the onsen, sento, or ryokan. Take off your shoes at the entrance (most have shoe lockers; key returns at the end), pay if required, receive a small towel and modesty cloth.

Step 2: Gender-separated changing rooms

The bath is gender-separated. Men's (男 / blue curtain) and women's (女 / red curtain). Some smaller onsen alternate by time of day. Confirm at the entrance.

Step 3: Undress completely

Inside the changing room, undress fully and put your clothes + valuables in a locker (¥100 deposit returned). No underwear, no swimsuit in the bath.

Take only:

• Your small towel (called "tenugui") into the bath area
• A modesty cloth (optional) — small cloth to hold in front of you while walking

Step 4: Pre-bath washing (this is mandatory)

Walk into the bath area. There will be a row of shower stations along one wall. Sit on the small plastic stool at one, and:

1. Rinse the seat and area where you'll sit
2. Wet yourself with the shower head
3. Wash your entire body with soap (usually provided)
4. Wash your hair with shampoo if needed
5. Rinse off completely — no soap should remain on your skin
6. Place your stool back, rinse the seat for the next user

This step takes 5-10 minutes and is non-negotiable. You don't enter the bath dirty.

Step 5: Enter the bath

Walk to the bath. Step in slowly — the water is often 40-43°C (104-109°F), which is hotter than you might expect. Acclimate gradually:

• First, sit at the edge for 30 seconds
• Lower yourself slowly to chest level
• Stay 5-10 minutes initially

Inside the bath:

• No soap, no washing
• No towels in the water (rest yours on your head or on the side)
• No phones (and no photos — this is a hard rule)
• No splashing, no swimming
• No talking loudly — this is a quiet relaxation space

Step 6: Repeat or exit

You can:

• Soak 5-15 minutes, get out, cool down, then re-enter
• Try different baths (most onsen have multiple: indoor, outdoor, hot, lukewarm, sometimes a sauna)
• Stay 1-2 hours total

When you're done, rinse off with a quick shower if you want (the natural minerals can dry out your skin if left on), towel off in the changing room, and dress.

Step 7: Post-bath rest

Most onsen have a relaxation area with vending machines (try the post-bath specialty: cold milk or fruit drinks). Sit, drink, relax. The blood-pressure drop after a hot bath is real — give yourself 15-30 minutes before walking back outside.

The tattoo question

This is the most-asked question by foreign tourists, and the answer is more complex than "yes/no":

Traditional onsen (still about 70%)

Many traditional onsen explicitly prohibit tattoos. Signs at the entrance say "刺青お断り" (tattoos prohibited) or "No Tattoos." This is rooted in historical association with yakuza (organized crime) in Japanese culture.

Tattoo-friendly onsen (growing, ~30%)

Increasingly, especially in tourist-popular areas:

• Tattoo-friendly onsen with explicit signage
• Tattoo cover-up patches at front desk (you cover tattoos with skin-colored adhesive patches)
• Private rotenburo (your own outdoor bath) at ryokan, where the no-tattoo rule doesn't apply
• Day-use private onsen rentable by the hour

How to find tattoo-friendly options

• Japanonsen.com maintains tattoo-friendly lists
• Ryokan staff often pre-confirm when you book
• Search "tattoo onsen [city]" — community lists in English

Cover-up patches

Some onsen will lend you skin-colored adhesive patches (¥0 - ¥500). If your tattoos are small enough to be covered (under ~10cm × 10cm), this is often acceptable even at otherwise-strict onsen. Larger tattoos (sleeves, back pieces) won't fit under patches.

Worst case: refused entry

If you've gone to an onsen that bans tattoos and you're refused entry, don't argue. The staff are following written policy. Options:

• Find a tattoo-friendly alternative (~20-30 min by phone search)
• Book a ryokan with private in-room rotenburo (more expensive but works regardless)
• Try a sento (public bath) which has less strict rules in some cases

Payment at onsen

Day-use onsen

• Cash always accepted at the entrance ticket booth or vending machine
• IC card (Suica/Pasmo): most modern onsen since 2022
• Credit card: roughly 50% acceptance, especially at tourist-popular ones

Ryokan stays

• Mostly card-friendly at major Japanese ryokan chains
• Cash deposit (¥15,000-¥30,000) often requested at check-in even when room rate is paid by card — see article #50 (Hakone) for the pattern

Vending machines and post-bath snacks

• Cash and IC card typically
• Cold milk (the Japanese onsen specialty) is usually ¥150-¥250

What to bring

Minimum

• ¥1,000-¥3,000 cash for the bath itself + drinks after
• Phone left in locker (not in the bath area)
• Change of clothes if you sweat through

Standard

• Small face towel ("tenugui") for washing and head-resting in the bath — often included in the entrance fee at onsen
• Modesty cloth (optional) — small cloth to hold while walking
• Plastic bag for wet items if you don't want them touching your dry clothes

For ryokan stays

• Yukata (provided by the ryokan) for wearing around the inn
• Tabi socks (provided)
• Casual clothes for outside the ryokan

Common cultural slips that foreigners make

① "I'll keep my swim shorts on"

No. Onsen is strictly nude bathing. Swim shorts in the bath = immediate ejection.

② "I'll skip the pre-wash"

Wash before entering is non-negotiable. The bath is for soaking, not cleaning. Pre-wash is the rule.

③ "I'll bring my phone to take a quick photo"

Photos of any kind are banned in the bath area. Leave the phone in the locker.

④ "I'll use the bath towel to dry myself in the bath"

Towels stay out of the water. Rest them on your head, on the side, or in the locker.

⑤ "I'll wash my hair in the bath"

Soap and shampoo are at the shower stations only. The bath itself has no washing.

⑥ "I'll talk loudly with my friends"

Onsen is a quiet, meditative space. Speak in low voices, even when chatting.

⑦ "I'll cover my body with the small towel in front of others"

The small towel is for face/head/walking. In the bath itself, the towel is on your head, not in the water.

⑧ "Quick 30-second dip is enough"

You won't get the experience. Soak 5-15 minutes minimum.

Recommended onsen destinations for first-timers

Easy (English support, foreign-friendly)

• Hakone (Yumoto Onsen area) — 90 min from Tokyo, multiple tourist-friendly day-use options
• Atami — coastal onsen town, 50 min Shinkansen from Tokyo
• Yufuin (Kyushu) — picturesque onsen town, English-friendly
• Kusatsu (Gunma) — famous onsen town, traditional but tourist-aware

Mid-tier (some English, mostly Japanese)

• Beppu (Kyushu) — famous "8 hells" (volcanic feature) + many onsen
• Ginzan Onsen (Yamagata) — Studio-Ghibli-like atmosphere
• Noboribetsu (Hokkaido) — hot-spring town

Advanced (mostly Japanese, traditional)

• Iwamuro Onsen — coastal, traditional, no English
• Kurokawa Onsen (Kyushu) — pure Japanese ryokan culture

Day-trip options from Tokyo

• Oedo Onsen Monogatari (closed 2021, but similar spa-style options exist) — Toyosu area
• Kanagawa onsen complexes — Yokohama-side day options
• Hakone Yutopia / Hakone Yumoto-Kotodama — popular day onsen

Practical playbook for first-timers

1. First onsen visit: Hakone-Yumoto day trip from Tokyo. ¥1,500-¥2,000 admission. Multiple bath options. Some English. Good entry point.
2. Bring: small towel (provided), ¥3,000 cash, IC card, change of clothes
3. Time: 1-2 hours
4. Skip phone: leave it in the locker
5. Tattoos: pre-confirm by phone or check tattoo-friendly lists
6. Don't drink alcohol before bathing — combined with hot water = potential fainting
7. Hydrate after — onsen sweats out a lot of water, drink the cold milk or water

Related

• #50 Hakone onsen weekend payment guide
• #86 Japan's cash culture
• #87 Tipping in Japan
• #95 Ryokan payment etiquette
• #105 Nikko money guide

Last verified 2026-05-18. Tattoo policies vary by individual onsen and shift gradually toward more inclusion over time. Always confirm in advance for specific venues.