These images are from an NHK report on tattoo-friendly hot springs in nearby Oita. The NHK report introduced the following web page:
https://enjoyonsen.city.beppu.oita.jp/100tattoo-friendly_beppuonsen_japan/
If you are considering going to OIta and you or someone who will be with has tattoos, I recommend that you check it out. According the the pie chart in the NHK report, 65.6% of the onsen (hot springs) in Beppu allow folks with tattoos to use the facilities. The third image is of a color coded map showing where different types of tattoo friendly facilities are located.
The address of the NHK page (in Japanese) is:
https://www3.nhk.or.jp/news/html/20180925/k10011643191000.html
Actually, I’m a bit disappointed in the NHK folks because they didn’t include a link or enough information for me to find the English page on my own. I had to write to B-biz LINK (the organization cited in the NHK report) to ask about the site. Fortunately, Mr. Kawamura from B-biz LINK responded right away.
By the way, in regard to Kumamoto, “Onsen Magazine” has the following page:
https://en.unknownjapan.net/tattoo-friendly-onsens
It’s good but I think the Enjoy Onsen site (for Beppu) is better.
– Kirk