Hongdae, around Hongik University Station, is a favourite base for young travellers: guesthouses, live music and streets that stay busy late, with Yeonnam-dong and Sinchon next door. The airport railroad (AREX) stops here. There are several 24-hour saunas within walking distance, and the area has some of Seoul's newer private sauna rooms.
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.