Fudonoyu is a natural onsen sento in a residential area of Joto Ward, Osaka, drawing its water from a source 1,000 meters underground. It has an open-air bath, high-temperature bath, medium-temperature bath, electric bath, jet bath, sauna and cold bath, and shampoo, body soap and conditioner are provided. Payment is made at a machine on the second floor, and PayPay is accepted. The changing room has key lockers, free dryers and a water server, and there is no separate rest area to sit in after the sauna.