Do this now
Follow these steps in order.
- 01
Check the venue’s hours, entry rules, tattoo policy and included amenities before paying.
- 02
Remove shoes where indicated and confirm the correct changing-room entrance.
- 03
Store clothing, valuables, your phone and your large towel in the changing area.
- 04
Wash and rinse your body thoroughly at a shower station before entering the bath.
- 05
Tie up long hair and keep the small towel completely out of the bathwater.
- 06
Enter slowly, speak softly and soak without swimming, splashing or washing in the tub.
- 07
Step out if you feel unwell, then lightly dry yourself before returning to the changing room.
What to know
Read the venue’s rules before you enter
Onsen facilities include day-use baths, ryokan baths, hotel baths, private reservable baths and larger complexes with swimsuit zones. The common public-bath sequence is useful, but it does not replace the signs at the facility you are using.
Before paying, confirm the admission hours, last entry, towel and soap availability, tattoo policy, age rules and whether any area requires swimwear. If a rule is unclear, show the staff the relevant question rather than assuming that every onsen follows the same system.
What to know
Remove shoes and identify the correct bath
JNTO says visitors are usually asked to remove shoes at the facility entrance and must remove shoes or slippers before entering the changing room. Use the shoe locker or shelf shown by the venue.
Most shared baths and changing rooms are separated by gender. Look for 女 for women and 男 for men, but do not rely only on curtain color: baths at some accommodations can switch assignments by time of day. Check the current sign every time and ask staff before entering if there is any doubt.
What to know
Store everything except the small towel
In a conventional shared onsen, undress completely in the changing area and store clothing in the designated basket or locker. Leave your large drying towel, phone, camera and other belongings there.
JNTO notes that onsen are typically enjoyed nude, while GO TOKYO states that swimwear is not allowed in public bathing unless the facility says otherwise. A co-ed resort zone or another designated area may instead require swimwear; use only the clothing specified by that venue.
What to know
Wash and rinse before entering the bath
The bath is for soaking, not for washing. Sit at an open washing station, use the shower or bucket without splashing nearby guests, wash your body and remove soap, shampoo and makeup completely before approaching the tub.
JNTO also describes kakeyu: pouring hot water over the body before entering. Follow any basin or shower instructions near the bath, then enter only after your body is clean and free of soap.
What to know
Keep the towel and long hair out of the water
The small towel may be used for washing or modesty while walking, but it must not enter the shared bathwater. Fold it on your head, place it in a permitted dry location or follow the facility’s stated method.
Tie up long hair or wrap it securely so it does not trail into the bath. Do not dip, rinse or wring the towel in the tub, even if it looks clean.
What to know
Enter slowly and share the bath quietly
Ease into hot water rather than jumping in. Speak softly, keep distance where space permits, and do not swim, splash, play or wash your body inside the tub.
Do not change the bath temperature on your own. GO TOKYO’s bathing guide tells guests to ask others before adding water when a bath feels too hot; the safest visitor choice is to use another bath or ask staff.
What to know
Keep phones and cameras outside
JNTO states that phones and cameras are forbidden in the onsen because of bathers’ privacy, including the privacy of minors. An empty-looking room is not permission to photograph or record.
Leave the device stored before entering the bathing area. If you want an image of a private bath or a room bath, obtain explicit facility permission and follow its stated photography conditions.
What to know
Use the heat conservatively
Soak according to the water temperature and your own tolerance rather than copying another guest. JNTO advises avoiding an excessively long soak, getting out for cool water when too hot and avoiding alcohol before bathing because it can affect judgment.
Leave immediately if you feel dizzy, faint, nauseated, unusually short of breath or otherwise unwell. Do not turn a quiet shared bath into a test of endurance; alert staff or a companion if symptoms do not resolve.
What to know
Dry before returning to the changing room
When you finish, the final rinse is a personal choice unless the facility gives a specific instruction. Either way, keep your towel out of the bath and do not leave the washing station wet or cluttered.
Use the small towel to remove surface water before crossing into the changing room, then dry fully with the large towel. Collect every item from the locker and return borrowed goods as directed.
What to know
Use a private bath when the shared format does not fit
JNTO recommends a private bath or a guest room with an attached bath for visitors who are uncomfortable undressing in a shared space. Private reservable baths may also help families, but advance booking, time limits and charges vary.
A private bath does not automatically cancel hygiene, tattoo, alcohol, photography or safety rules. Confirm the exact conditions with the facility before use.
If that does not work
Use the fallback.
- If the changing-room sign is unclear, wait outside and ask staff before entering.
- If towels or soap are not provided, rent or buy them where available or use clean items you brought.
- If you are uncomfortable with shared nude bathing, ask for a private bath or a room with its own bath.
- If you have a tattoo, check the facility’s current policy before paying or undressing.
- If the water feels too hot, use another bath or get out; do not add cold water without permission.
- If you feel dizzy or unwell, leave the water, cool down, drink water when safe and alert staff.
- If a local sign conflicts with this guide, follow the venue’s sign and staff direction.
Before you need it
Save this offline.
- Check entry, tattoo, swimsuit and amenity rules first
- Wash and rinse completely before soaking
- Keep towels, long hair, phones and cameras out of the bath
- Enter slowly; no swimming, splashing or washing in the tub
- Lightly dry before returning to the changing room
Primary evidence
Official sources used
Open these pages again before travel. External links lead to the responsible Japanese authority or transport organization.