Sento at dawn in Kuramae
A neighborhood bath, opened before the sun, for under a thousand yen.
Find a working sento in a residential pocket, arrive at opening, and follow the rules. Wash, sit, soak, sit. The building is half the experience. The neighborhood waking up around it is the other half.
Editor's note: Skip the trendy spa rebrands. The plain old sento is the point.