Passport? Good.
Pedestrians crossing Shibuya Scramble in Tokyo at dusk

At a glance

Tipping
Not expected
Cards
Cities yes, small shops cash
Tap water
Safe to drink
Haggling
Not done

Arriving

The first hour — getting out of the airport and into the city.

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Getting around

Tapping through gates, finding a taxi, and the parts nobody explains.

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Where you stay

Checking in, what the front desk is required to take, and what a private rental has to show you.

Money

What to carry, where cards stop working, and how to top up.

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At restaurants

Ordering, paying, and the small rituals that are easy to get wrong.

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Phone and internet

Getting online, and what a tourist data plan quietly does not include.

Everyday basics

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

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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
A row of sorted bins on a Japanese station concourse, one opening per category

Where do I throw my trash?

Almost nowhere on the street. The tourism board’s own advice is to carry it and take it home when there is no bin — stations and convenience stores are the exceptions, and there you sort it four ways rather than dropping it in one hole.

JNTO — Etiquette
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

How other countries compare

For a trip that crosses borders — the same question, answered country by country.

Sort the practical stuff before you fly.

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