
Read the official site
Bath rules, FAQ and house-rules pages of each inn — not reviews, not hearsay. The rules usually exist; they're just in Japanese and three clicks deep.

Night bath · Kusatsu Yubatake
Tattoo-friendly onsen, per inn and per condition. We searched each inn's official site, quote the rule where one is published, and say so when nothing is.
Five onsen towns to start · 37 towns in the register
箱根Hakone23 inns7 verified · 8 possiblePhoto: Charlie fong (photo page on Wikimedia Commons, opens in a new tab) · CC BY-SA 4.0 (licence, opens in a new tab)
河口湖Kawaguchiko21 inns3 verified · 7 possiblePhoto: Marion & Christoph Aistleitner (photo page on Wikimedia Commons, opens in a new tab) · CC0 (licence, opens in a new tab)
城崎Kinosaki31 inns5 verified · 18 possiblePhoto: Mypom9 (photo page on Wikimedia Commons, opens in a new tab) · CC BY-SA 4.0 (licence, opens in a new tab)How we verify
Forum threads go stale and booking sites rarely say. We search each inn's official site for its tattoo rule, copy the sentence that decides it, and record it when nothing is published. Exceptions are labelled: a prefecture database, an operator's group-wide policy, or no official site found. The photos here are atmosphere — none shows an inn in our register.

Bath rules, FAQ and house-rules pages of each inn — not reviews, not hearsay. The rules usually exist; they're just in Japanese and three clicks deep.

The original Japanese sentence, untouched — then our English, clearly labelled as ours.
当館でタトゥーに対して特に規制はございません。“We have no particular restrictions on tattoos.”

Every policy carries the day we checked it. When an inn changes its wording, the old line stays on record next to the new one.

A notice like this is often the first time a traveller learns the rule — at the bath entrance, after the room is paid for. Here: tattoos are “firmly refused”, in the same line as gang members.
631 inns · as of 12 Oct 2026

The map · as of 12 Oct 2026
Every dot is one inn in our register — 631 of them in 23 prefectures. Pick a status to light up its dots; tap a prefecture to zoom in and see every inn there.
One dot = one inn. Colour = tattoo status. The interactive map (zoom into a prefecture, list every inn) is on the map page, with a table of every prefecture.