Japan · water
Wash first, then soak in quiet.
Steam, a low stool, a tap that has heard every excuse. An onsen is not a pool party with a mountain view. It is a house with a rule: arrive clean, soak, and let the water be quiet.
A bathhouse, not a spa brochure
The photographs show cedar and mist. Inside, you find a row of people who already know which stool is theirs. You are a guest in their bath. Keep your voice low. Leave your phone in the locker; a camera in a changing room is not a travel tip but a crime.
The sento is the neighborhood version, a bath after work. The onsen uses natural mineral water and is often a whole town with a last train home. Both ask for the same manners. Courtesy is how a crowded country stays livable.
If you would not do it in someone else’s bathroom, don’t do it here.
Opening hours change, and so do tattoo policies, so we leave both out. Check maps the morning you go. The guest essay says more about keeping quiet and not turning a bath into content.
Decide
Do I wash before the bath?
Yes, always. Soap and rinse at the low stools until you would happily sit beside yourself. The bath is for soaking, not for getting clean. Step in unwashed and you will be remembered for the wrong reason.
Will my tattoos keep me out?
Some baths turn tattooed guests away, some ask you to cover up, and some do not mind. It is each bathhouse’s own rule, not a national law to argue at the door. Check with the place you plan to visit. We will not promise a yes for every one.
Can I wear swimwear?
Usually not, in a traditional indoor bath or a rotenburo outdoor bath. Mixed baths and hotel pools are different. Follow the rules of the place you paid for. Towels never go in the water. Tie long hair up so it stays out of the water.
Is an onsen a day trip from Tokyo?
It can be: Hakone, the Izu coast, or a neighborhood sento in the city. We will not invent a fare or a last bus time; the operator publishes those. A sento in eastern Tokyo is a bath too, and Miyano-Yu kept its name after the steam was gone.
How to bathe
Clean first, then soak
The locker room is the boundary
Leave your shoes where shoes go and your clothes in the basket. The small towel is for sitting on and covering up, not for the water. Watch the regulars.
Wash thoroughly
Sit on the stool and soap and rinse until the water running off you is clear. Then get into the bath. Tie your hair up. No diving, and no washing in the soaking pool.
Leave as quietly as you came
Dry off before you step into the changing room. A drink from the vending machine is welcome; a loud review in the doorway is not.
Then go
If your week is Tokyo’s neighborhoods, a sento or one day at the hot springs is plenty. If you are already taking the train to Kyoto, don’t squeeze Hakone in beside a temple district because a ranking said so. One bath, one quiet hour, then home.