温泉 · onsen
Onsens & Sentos
Hot springs & public baths
Rinse off first, leave the swimsuit in the locker, keep the little towel out of the water — the bathing rituals, explained without a hint of judgment.
A good soak is one of the most restorative things you can do in Tokyo, and it’s also the thing first-timers are quietly dreading. Almost none of that dread is about the nudity. It’s about not knowing the order of operations, and worrying that everyone in the room will know you’re a beginner. They won’t, and even if they did, nobody cares the way you imagine.
Here’s the whole secret: you wash thoroughly before you get in the bath, not in it. After you slip off your shoes at the entrance, you undress completely in the changing room, then sit at one of the little shower stations and clean yourself head to toe before you so much as dip a toe in the communal water. That single habit is the heart of onsen and sento etiquette, and once it clicks, the nerves fall away.
Tokyo gives you both kinds of bath. A sento is the neighborhood public bathhouse, heated tap water, often gloriously old-school with a mural of Mount Fuji on the wall. An onsen uses real mineral hot-spring water, and yes, you can find them inside the city. The etiquette is the same for both, and I’ll walk you through it like a friend who’s been a hundred times, because I have.
What you’ll learn
- The wash-first ritual, step by step — sitting at the shower station, rinsing off completely, and why this one habit is the whole game
- Why everyone bathes nude, that no one is looking, and the small moves that make it feel ordinary within ninety seconds
- The little towel — what it’s for, how people use it for modesty on the walk over, and why it never touches the bath water
- Tattoos in Tokyo: which baths welcome them, how cover patches work, and how to book a private kashikiri or family bath when you’d rather not stress
- Sento vs. onsen, tying long hair up off your neck, and the firm no-phones, no-photos rule in the bathing area — plus what to do with your stuff
- Reading the curtains and signs — the red noren for women, blue for men — so you walk through the right door the very first time
The questions travelers actually ask
Pulled from what real visitors are searching and posting — every one answered inside the guide.
- What do I have to do before getting into the onsen water so I don't get politely kicked out?
- Can I go to an onsen if I have tattoos, and are there tattoo-friendly baths?
- I'm nervous about being naked around strangers at the onsen for the first time, is there any way to make it less awkward?
- What towel am I supposed to bring to the onsen, and what do I actually do with it?
- What's the difference between an onsen and a sento, and which should I try?
- What are the main onsen etiquette rules so I don't accidentally embarrass myself as a tourist?
- How does the wash station and bathroom bathing setup at a Japanese bath actually work?