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With easy access from Shinjuku, Koenji’s Kosugi-yu lives up to the hype travelers and locals have given it for generations. This near-century-old wooden sento provides everything needed for proper rejuvenation for only ¥550.

The Koenji branch boasts four baths: a medicated bath, a massage jet bath (with three jets), a milky water bath, and a small cold bath. All you need to worry about is bringing a small towel (or renting one on-site).