There is no clear information from the rules or official website regarding tattoo admission. Since there are also no user reports, it is unclear whether this facility accepts guests with tattoos.
User reports lean OK.
User reports lean OK.
The facility explicitly states that individuals with tattoos are requested to refrain from using the public bath. However, there is no explicit official statement allowing or forbidding tattoos. Given this mixed evidence, it's likely that guests with tattoos will not be admitted.