Is photographing an empty onsen room (no other bathers visible) legal in Japan?

No — Photography inside any onsen bathing area is prohibited by law regardless of whether other bathers are visible in the shot. The act of having a camera out in a bathing area — even in a seemingly empty space — is itself the violation. Other bathers may enter the frame, and the legal risk applies to the act, not just the resulting image.

Can you photograph your own bag or locker inside the onsen changing room?

No — The changing room (脱衣所) is explicitly covered by onsen photography prohibitions. Other people are undressing in that space, and having a camera out while others are present is a violation — regardless of what you claim to be photographing. Lock your phone before you enter the changing room.

Is it okay to photograph the exterior of an onsen building and the surrounding landscape?

Yes — Photography restrictions apply inside the bathing area and changing rooms. The exterior of the building, the surrounding landscape, the lobby (check with staff first), and the approach to the facility are generally fine to photograph. Take your exterior shots before you enter, and leave the camera in the locker once you're inside.

Photography Critical

Photos Inside Onsens: A Crime, Not Just Bad Etiquette

Photographing inside any onsen bath or changing room in Japan is a criminal offense — arrest, fines, deportation. No camera, no phone, no exceptions.

Photographing inside the onsen bathing area

Taking out your phone or camera inside the onsen bathing area — even to photograph the scenery or the empty space

The prohibition on photography inside an onsen extends to every possible subject — other bathers, the space itself, the view from a rotenburo, and even empty rooms if other bathers might walk through the frame. 'But there was no one in the shot' is not a legal defense; the act of having a camera out in a bathing area is itself the violation. Japanese law (迷惑防止条例 and 盗撮防止法) covers this explicitly, and enforcement is real: arrests of foreign tourists for onsen photography happen and make the news.

Leave your phone and camera in the changing room locker — no exceptions

Every onsen facility provides lockers in the changing room. Put your phone there before you enter the bathing area, lock it, and leave it. There is no photographic opportunity inside an onsen that is worth the legal risk. The scenery from a rotenburo can be enjoyed with your eyes; your Instagram followers can find the photos elsewhere. The rule is simple and non-negotiable.

Photographing in the changing room (脱衣所)

Photographing your own locker, your bag, or the room's decor while other people are using the changing room

The changing room (脱衣所, datsuijo) is explicitly included in onsen photography prohibitions. It is a space where people are undressing and storing their belongings. Taking a photo of your own luggage or the locker label while other people are changing — even if you carefully angle the camera away from them — is still a violation. The presence of your camera in that space while other people are undressing is the problem. There is no 'I wasn't pointing at anyone' exception.

Keep your phone in your locker before you enter the changing room, not after

The cleanest approach: lock your phone and camera in your locker at the front desk or in the entry area before you even enter the changing room. Most onsen facilities have initial lockers before the changing room for valuables. Put your electronics there. If that's not available, put your phone in your bag, put your bag in the changing room locker, lock the locker, and do not take your phone out until you're fully clothed and leaving the facility.

Photographing the outdoor scenery from a rotenburo

Taking a photo of the mountain view or river scenery from an outdoor rotenburo bath because 'there were no people in the shot'

Open-air rotenburo (露天風呂) are among the most photogenic spaces in Japan, and the temptation to document a mountain onsen at dawn with steam rising from the water is completely understandable. The rule still applies. Other bathers may be just outside the frame, may walk into the frame, or may see you with a camera and be distressed regardless of where the camera is pointing. The outdoor setting doesn't create a photography exception — it's still a bathing area.

Photograph the exterior view before you enter — the rule is clear once you're inside

Photograph the exterior building, the surrounding landscape, and the approach to the onsen facility freely — these are public spaces. Once you cross into the bathing area, put the camera away permanently for that visit. Many rotenburo onsen are located in extremely scenic settings; the accommodation website, Google Maps, and tourism boards will have the exterior shots you're looking for if you need them for planning or sharing.

Why this one is a crime, not just bad manners

Most etiquette rules in Japan live in the realm of social norms — do the wrong thing and you’ll get a gentle correction. Onsen photography is categorically different. Japan’s prefectural nuisance prevention ordinances and the 2023 national anti-voyeur photography law explicitly criminalize photography inside bathing areas and changing rooms. Arrest, fines, imprisonment, and deportation for foreign visitors are all on the table.

This isn’t hypothetical enforcement. Voyeuristic photography in bathing facilities was a documented, serious problem that drove the legislative response. Police respond to complaints. Facilities call authorities. Cases involving foreign tourists have made national news.

From the moment you cross into the changing room, your phone is in the locker. Not in your hand “but face down.” Not in your pocket “just in case.” In the locker.

What the law actually covers

The bathing area — Indoor baths, outdoor rotenburo, sauna rooms. Every subject is prohibited — other bathers, the empty room, the scenic mountain view. “No one was in the shot” is not a legal defense.
The changing room — People are undressing. Having a camera out while others are present is the violation, regardless of what you claim to be photographing.
The rotenburo temptation — Yes, a mountain onsen at dawn with steam rising is incredibly photogenic. The rule still applies. Other bathers may be just out of frame or may walk in. The outdoor setting creates zero exceptions.

A few “nice to know” extras

Private onsen baths — Some ryokan offer kashikiri buro (private reserved baths). Even here, the photography prohibition applies — it’s still a designated bathing area under the law.
Shoot the exterior first — The approach path, the entry gate, the building in its landscape setting — all completely fine. Get your shots before you check in.
Video calls count — Being on a video call in the bathing area — even “just audio” with the camera supposedly covered — is treated the same as having a camera out. The phone itself is the problem.
If you see someone else photographing — Alert facility staff. They take this extremely seriously and will respond. You don’t need to confront the person yourself.

Quick check

Three questions to lock in the onsen rule.

Q1 Is photographing an empty onsen room (no other bathers visible) legal in Japan?
Q2 Can you photograph your own bag or locker inside the onsen changing room?
Q3 Is it okay to photograph the exterior of an onsen building and the surrounding landscape?