TOTOPA Hakata opened in August 2026 in Meiji Park by Hakata station. Men use the third floor and women the fourth; each has one 'Sennen Sauna' built from a single western red cedar, its stove set inside a hollowed trunk 1.37 m across and open to self-löyly, plus a cold bath (120 cm deep on the men's side), a hot bath and an open-air lounge. The bathing floors are nude and swimwear is not allowed. Entry is ¥2,480 for two hours with free soft drinks, walk-in and cashless.