Hiroo-yu

Fully renovated in July 2017, Hiroo's well-loved public bathhouse has been welcoming guests since 1918. Its iron-rich water is pumped from deep under ground, while the bathing facilities are about as retro as they get in Tokyo these days. If you're craving a sudden soak, just pop in and get the 'hands-free' set: ¥120 gets you towels, shampoo, body soap and conditioner.