Visiting a Japanese onsen for the first time? Learn what to expect, how to wash, what to do with your towel, tattoo rules, bathing etiquette and more.
The first time you hear about visiting an onsen in Japan,
one question usually comes before all the others:
“What exactly am I supposed to do when I get there?”
I understand why.
You may have seen beautiful photos of outdoor hot springs
surrounded by mountains, snow or forests. The relaxing part looks easy.
Then you start reading about the rules.
No swimsuit.
Wash first.
Keep your towel out of the water.
Tie your hair up.
Don't take your phone.
What about tattoos?
What about jewelry?
Suddenly something that looked wonderfully relaxing starts
to feel like an examination you haven't studied for.
The good news is that the experience is much easier once you
understand the basic flow.
An onsen is not a swimming pool and it is not simply a hot
bathtub. The main idea is that you clean yourself before entering the shared
bathing water. Most of the etiquette follows naturally from that principle.
JNTO's current guidance also emphasizes thorough washing, keeping towels and
hair out of the water, speaking quietly and checking tattoo policies
beforehand.
So rather than giving you a giant rulebook, here's how I
would mentally prepare for a first Japanese onsen.
Your first onsen visit, from the entrance to the exit
1. Before you enter: check the rules that can actually
change your experience
Don't rush through the entrance.
This is the moment to check what kind of bathing facility
you are about to use.
An onsen uses naturally sourced hot-spring water,
while a sento is generally a public bath using heated water. They can
look similar to a first-time visitor, but they are not exactly the same thing.
Also look for the entrance to the correct bathing area. Most
traditional facilities separate men's and women's baths.
And then there is the issue many international visitors
worry about most:
Tattoos
There is no universal “all onsens allow tattoos” rule.
Many facilities still restrict visible tattoos, while others
openly welcome tattooed visitors. Some allow certain tattoos when covered, and
private baths can provide another option. JNTO specifically advises visitors
with tattoos to check the policy in advance.
This is one situation where checking before you arrive is
far better than trying to negotiate at the reception desk.
A 2026 traveler discussion also illustrates why: tattoo
policy can differ even within the same hotel, with the accommodation and its
public bath not necessarily having identical rules.
What about swimwear?
Traditional communal onsen bathing is normally done without
clothing or swimwear. JNTO explains that clothing is generally left in the
changing area, while certain non-traditional or mixed facilities may have
different rules.
So don't assume the swimsuit you packed for the hotel pool
should automatically come with you.
A simple first-timer check
Before crossing the entrance:
Men or women?
Tattoo policy?
Traditional bath or special swimwear facility?
Once those questions are settled, most of the nervousness
disappears.
2. In the changing room: this is where the clothes stay
This part sounds obvious until you're actually standing
there.
You enter the changing area, find your locker or basket,
remove your clothes and leave them there.
Traditional onsen bathing is generally nude. That can feel
strange for a first-time visitor from a culture where public bathing is
normally associated with swimwear, but in Japan it is an ordinary part of the
bathing experience. JNTO describes nude communal bathing as standard at
traditional onsen.
You are not expected to make a big event out of it.
Everyone is there to bathe.
Put your clothes and valuables away, take the small towel
supplied by the facility if one is provided, and head toward the washing area.
And leave your phone behind
This is one rule I would treat as non-negotiable.
Do not bring a phone or camera into the bathing area.
It is not simply about avoiding distractions. People are
naked, and privacy matters. JNTO explicitly says cameras and phones should be
left outside the bathing area.
A widely discussed traveler post also described visitors
actually photographing or filming in bathing areas, which shows why this rule
deserves more attention than it sometimes receives in casual travel content.
Take your photos before you enter.
Once you're inside, enjoy the moment without your camera.
3. At the washing station: this is the part beginners
should get right
This is probably the most important stage of the entire
process.
You wash before entering the hot spring.
You don't get into the bath to wash yourself.
Most onsen have small washing stations with a stool, shower,
bucket and toiletries. JNTO describes thoroughly washing the body and rinsing
completely before entering the bath.
Sit down.
Wash your body.
Wash your hair if needed.
Rinse away all soap and shampoo.
Then rinse the washing area so it is ready for the next
person.
This is where the logic of onsen etiquette becomes much
easier to understand.
The bath water is shared.
You're entering it already clean.
That's why jumping straight into the tub after walking
around Tokyo all day is not appropriate.
What happens to the little towel?
Don't put it in the bath.
You can use it while washing, but when you enter the hot
spring, keep it out of the water. Some people fold it and place it beside the
bath; others balance it on top of their head. JNTO specifically recommends
keeping the towel out of the water and tying up long hair so it does not touch
the bath.
If you remember only one sentence from this article, make
it:
Clean body in. Towel out.
4. In the hot spring: slow down instead of trying to “do”
something
This is the part tourists sometimes overcomplicate.
Once you're clean, enter the bath slowly.
You don't need to swim.
You don't need to chat with everyone.
You don't need to prove that you can tolerate the hottest
water.
Just sit, soak and relax.
JNTO recommends easing into the heat, taking breaks and
drinking water when needed. It also advises avoiding alcohol before bathing
because heat can affect your judgment and comfort.
How long should you stay?
There isn't a magic number that works for everybody.
The water temperature and your own tolerance matter.
One official JNTO guide recommends not staying too long and
stepping out for cool water when you become overheated.
If your body says “that's enough,” get out.
Nobody is awarding points for the longest soak.
Keep the atmosphere calm
An onsen is generally a place to relax.
Speak softly.
Don't splash.
Don't swim.
Don't make the bath your personal swimming pool.
JNTO and other established guides consistently emphasize
quiet behavior and consideration for other bathers.
And here's something reassuring:
You don't need to copy every movement of the person next to
you.
Observe what is happening, follow the basic rules and give
people some personal space.
That's enough.
Try an outdoor bath
When the facility has a rotenburo, or outdoor bath, I
would seriously consider trying it.
This is one of the reasons onsen can feel so different from
an ordinary bath. Many hot-spring areas combine warm water with views of
mountains, forests or seasonal scenery. JNTO specifically highlights outdoor
baths as one of the distinctive pleasures of onsen bathing.
Sitting in hot water while cool air moves around you can be
a completely different experience from what you imagined from home.
5. Leaving: dry yourself before taking the next step
There is one last little detail that first-time visitors
often don't think about.
When you're finished bathing, don't walk dripping wet
straight into the changing room.
Use the small towel to remove excess water from your body
before you return to the changing area. This keeps the floor and changing space
drier and shows consideration for the next person.
Then dry yourself properly, get dressed and collect your
belongings.
Depending on the facility, you may find hairdryers, mirrors
and basic toiletries in the changing area. JNTO notes that many facilities
provide such amenities, although exactly what is supplied varies.
And don't feel that you need to take another full shower
afterward.
JNTO notes that rinsing after the onsen is a matter of
personal preference, depending on the type of experience and what feels
comfortable to you.
The small things
that make your first visit much easier
Remove jewelry before bathing
This is easy to forget.
Some mineral-rich onsen waters can affect jewelry, so JNTO
advises leaving valuables and jewelry safely stored rather than taking them
into the bath.
Tie up long hair
Even if your hair has just been washed, don't let it float
in the bath.
Tie it up before entering.
Follow the facility's own signs
A travel article can give you the general pattern, but the
bathhouse you're standing inside has the final say.
There may be specific rules concerning tattoos, children,
photography, mixed bathing, towels or particular pools.
Read the signs.
Don't panic about making one tiny mistake
This may actually be the most useful advice here.
Your first onsen experience can feel awkward because you're
trying to remember everything at once.
But the basic idea is remarkably simple:
Undress → wash → rinse → soak → relax → dry.
Once you've done it once, the mystery largely disappears.
FAQ
Do tourists have to be naked in a Japanese onsen?
Traditional communal onsen generally require guests to bathe
without clothes or swimwear. Some special facilities have different
arrangements, so always check the rules of the particular bath.
Can I wear a swimsuit in an onsen?
Usually not in a traditional communal onsen. JNTO notes that
there are exceptions, including certain mixed-gender or more commercial
facilities with their own bathing-wear requirements.
Do I need to shower before entering an onsen?
Yes. Thoroughly wash and rinse yourself at the washing
station before entering the shared bath.
Can I put my small towel in the hot spring?
No. Keep the towel out of the water, either beside the bath
or on top of your head.
Can my hair touch the onsen water?
It should not. Tie up long hair or otherwise keep it out of
the bath.
Can I bring my phone into an onsen?
Phones and cameras should be left outside the bathing area
because of privacy concerns.
Can people with tattoos enter Japanese onsens?
It depends on the facility. Many still have tattoo
restrictions, but tattoo-friendly onsen are becoming more common, and private
baths can be an alternative. Check before visiting rather than assuming.
Can I visit an onsen if I don't speak Japanese?
Yes. Many facilities have signs or instructions designed to
help visitors, and following the basic bathing sequence makes the experience
fairly straightforward. JNTO also recommends using posted instructions and
asking when you are unsure.
Can I eat or drink alcohol before an onsen?
Avoid alcohol before bathing. JNTO warns that alcohol can
affect judgment and recommends taking breaks and drinking water when you become
hot.
How long should I stay in an onsen?
There is no single ideal time for everybody. Water
temperature and your tolerance matter. Take breaks, leave the water when you
feel overheated and drink water afterward.
Is an onsen the same as a sento?
No. Both are public bathing experiences, but an onsen is
based on natural hot-spring water, while a sento is generally a public bath
using heated water.
What current travel information suggests
The first Japanese onsen can sound intimidating when you
read all the rules before going.
In reality, the experience follows a simple rhythm.
Get changed.
Wash properly.
Keep your towel and hair out of the water.
Soak quietly.
Get out when you've had enough.
Dry yourself before returning to the changing room.
That's most of what you need.
The tattoo question is the one thing you should investigate before
arriving because individual facilities can have different policies.
Everything else becomes much easier once you understand the
main idea:
The bath is for soaking, not washing.
And after the initial awkwardness disappears, you may
discover why so many travelers remember their onsen experience as one of the
most peaceful parts of a Japan trip.
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