Hosen-yu

A sento in Negishi, Taito, about five minutes from Iriya Station, popular for its sauna and daily-changing medicinal (kusuriyu) bath. A tropical fish tank is a point of pride, the bath lineup is varied, and the cold-water plunge is kept well chilled. There are also jet, vibra, electric, and seated baths, a rest area, and free Wi-Fi.