Dongdaemun, around DDP and the late-night fashion malls, is the easiest place in central Seoul to find a large 24-hour jjimjilbang: Sparex is in the Goodmorning City mall opposite DDP, and a second Sparex branch opened near Dongmyo in 2024. Travellers often come here for a cheap night's sleep or a wash after a late flight.

Most places on this list are ordinary neighbourhood bathhouses with signs in Korean only. These guides explain what to do at the counter, what it costs and the rules on tattoos.