Passport? Good.

Japan

Everyday basics

The small logistics that decide whether a day out goes smoothly.

A public drinking fountain inside Mojiko Station

Can you drink the tap water in Japan?

Yes, anywhere in the country — including from the drinking fountains in stations and parks.

Tokyo Metropolitan Government
Toilet entrance and signage inside Morinomiya station, Osaka

Are public toilets free, and where do I find one?

Free, everywhere, and clean. Stations, parks, convenience stores and department stores all have one.

JNTO
Diagram: 110 reaches the police, 119 reaches fire and ambulance

What number do I call in an emergency?

110 for police, 119 for fire or ambulance. Both are free and work from any phone.

JNTO
Diagram: a Japanese socket has two flat parallel slots, and the supply is 100 volts

Do I need a plug adapter, and will my charger work?

Japan runs on 100 volts — the lowest mains voltage anywhere. Most chargers cope; anything with a heating element or a motor often does not.

JNTO
Designated outdoor smoking area in Shimbashi, Tokyo

Where can I smoke, and where can't I?

It is the reverse of what most visitors expect: indoors is generally banned, and so is smoking while walking outdoors. You look for a designated area.

JNTO — Local laws
The outdoor bath at Tsurunoyu onsen

Can I use an onsen if I have tattoos?

Often not, and it is the venue's call: many pools, baths, hot springs and gyms refuse tattooed guests, while some accept them covered.

JNTO — Local laws
Diagram: carry the passport itself — a photo of it on the phone is not the document

Do I have to carry my passport around?

Yes — visitors are expected to carry the passport itself at all times as identification. A photo of it is not the document.

JNTO — Local laws

Sort the practical stuff before you fly.

eSIMs, rail passes, and airport transfers — the things worth booking before you land.