Tattoo-friendly onsen in Gunma

Is Gunma tattoo friendly?

Yes, at more places than you might expect. Of the 20 onsen we have checked in Gunma, 3 let you into the shared baths with tattoos showing; 2 let you in if you cover them with a patch; 2 only in a private (kashikiri or in-room) bath. 2 turn tattooed bathers away, and 11 publish no rule we could confirm. Each count comes from the facility’s own published rule. Some inns treat day visitors and overnight guests differently, so a place counts here if either one is let in — each card below says which.