Yokoyama Yu-land Tsurumi

A large day-use bathhouse spread across four floors in Yokohama's Tsurumi Ward. The baths include a carbonated open-air pool, an indoor bath filled with real onsen water pumped up from deep underground, a men-only nuruyu (ぬる湯) low-temperature soak, a bubble jet bath, and a cold plunge that's genuinely cold, plus a yellow-clay sauna room. Upstairs there's a sit-down restaurant, a body-care and akasuri floor, and a rest area to nap off the soak. The building carries an unmistakable Showa-era feel, worn at the edges but kept clean, more neighborhood sento than glossy super-sento. It draws families for a whole afternoon: a bath, a meal, then the game corner before heading home.