Ofuro no Osama Hanakoganei
Time Out says
16 baths and saunas of all sizes, including seven with natural onsen water, await at the Hanakoganei outpost of Ofuro no Osama. Part of a Kanto-wide chain of 'super sento', this one can be enjoyed for a mere ¥880 on weekdays (¥1,080 on weekends and holidays) – as long as you sign up for their membership system (a one-time registration fee of ¥100 required). The open-air area features a hot stone bath where you can lie down and look up at the stars while warm water runs down your back, and a comfy steam sauna sure to satisfy even less experienced onsen-goers.
3-9-10 Hanakoganei-Minamicho, Kodaira-shi
|Transport:||Hanakoganei Station (Seibu Shinjuku line), south exit|
|Price:||Mon-Fri: Adults ¥960, child ¥400, infant ¥300; Sat, Sun, hols: Adults ¥1,160, child ¥500, infant ¥400|
|Opening hours:||9am-12midnight (last entry 11pm) daily|