Nothing bad is about to happen to you. Everyone in the bath is naked because everyone is, and nobody is looking. The hard part of a jjimjilbang is only the first ten minutes, and this page is those ten minutes in advance.
A 찜질방 (jjimjilbang) is a public bath with a living room attached. The bath is single-sex and naked. The living room, with its heated rooms, snack bar, television and floor to lie on, is mixed and everyone wears the same shorts and T-shirt. Some are open all night and double as the cheapest bed in the city.
At the door
You pay, and you get three things: a wristband with a key and a number, a folded set of cotton shorts and a T-shirt, and one or two small towels. The number is your locker and your tab. Anything you buy inside, an egg, a scrub, a drink, is charged to the wristband and settled when you leave.
Shoes go in a small locker by the entrance first. Then you walk, in socks or bare feet, into the changing room on your side, find the locker that matches your wristband, and undress completely. The uniform stays in the locker for now. You go into the bath with a small towel and nothing else.
In the bath
This is the part people worry about, and the rules are short.
Shower first, sitting down. There is a row of low stools and hand showers along the wall. Wash properly before any tub, because everyone shares the water and everyone is watching for the person who did not.
Tie your hair up. Long hair does not go in the water.
The small towel does not go in the pool. Fold it on your head or leave it on the edge.
Nothing on but you. Swimsuits are not worn in a Korean bath, and a foreigner in one draws the attention you were hoping to avoid.
The tubs run from cold to too hot, and there is usually a sauna room or two off the bath. The extra you can buy here is the 세신 (seshin, body scrub), done by a scrubber in black underwear on a plastic table with a rough mitt, which takes off a layer you did not know you had. It is paid to the scrubber’s own price list.
Children aged four and over must use the bath on their own sex’s side. That is national public-health law, and Aquafield prints it on its entry rules. A father with a five-year-old daughter takes her only as far as the mixed hall.
Out to the floor
When you have had enough, dry off in the changing room and put on the uniform. Now you are in the mixed part, and this is where a jjimjilbang stops being a bath.
There is a large heated floor where people lie on thin mats with a wooden block for a pillow. Around it are the sauna rooms, each hotter or colder than the last, lined with clay, salt, stone or charcoal, and one ice room. In and out of them is the whole activity.
The snack bar sells 식혜 (sikhye, sweet rice punch) and eggs roasted brown in the kiln (맥반석 계란, maekbanseok gyeran), which is the meal Koreans associate with the place. Fold the small towel so two rolled ends stick up like ram’s horns and wear it, and you have completed the picture.
Which one
The two names every older English guide gives you, Dragon Hill Spa in Yongsan and Siloam by Seoul Station, are closed. Dragon Hill went dark in 2021 and has not reopened. Siloam shut afterwards. Do not go looking for either.
Sparex, Dongdaemun. The classic all-night kind, three floors under the Good Morning City mall, out of exit 14 of Dongdaemun History and Culture Park station on line 4. Open 24 hours. Klook lists the entry ticket at about USD 10, and a second Sparex near Dongmyo at the same price. This is the one for a missed last train or a look at how the place is used by the people it was built for.
Spa Land Centum City, Busan. The polished one, inside the Shinsegae department store at Centum City. 26,000 won for an adult, 21,000 for a student, open 09:00 to 22:00 with last entry at 21:00. One ticket buys four hours, then 5,000 won an hour, or six hours if you spend 10,000 won inside. Children are admitted from elementary school age with a same-sex adult. The outdoor foot baths and the size of the sauna hall are what you are paying for. Klook listed the ticket at about USD 17 on 1 September, so compare it with the door price on the day. If you are doing the Busan two days, it is a rainy-afternoon answer.
Aquafield. Inside the Starfield malls at Hanam and Goyang, both a bus or subway ride out of Seoul, and at Anseong. 26,000 won for anyone from middle school up, 21,000 from 36 months to elementary age, free under 36 months with a document. Open 10:00 to 22:00, six hours on a ticket, then 5,000 won an hour. Hanam has a rooftop pool; the mall around it has everything else.
The neighbourhood kind, one per district and open all night, is cheaper and plainer. They are in every city and Kakao Map finds them under 찜질방 (jjimjilbang).
Three things nobody tells you
The wristband key is waterproof. Wear it into the bath.
Phones stay out of the bath area, and cameras anywhere near it get you removed.
If you plan to sleep, claim a spot on the floor early and bring nothing you would mind losing. The lockers are secure; the floor is a floor.
Spa Land Centum City’s prices, hours, time limit, overtime charge, six-hour rule and age policy are from Shinsegae’s own page for the spa, read 17 September 2026; its tattoo warning is from the ticket listings its resellers publish, since the department store’s page does not carry one. Aquafield’s prices, hours, time limit and age rules, including the statement that children aged four and over cannot share a bath under the Public Health Control Act, are from Aquafield’s usage page, read the same day. Sparex Dongdaemun’s 24-hour operation, location and subway exit are from Seoul’s official tourism site, and its Klook price from the Klook catalogue of 1 September 2026, as is Spa Land’s. The closures of Dragon Hill Spa and Siloam are from Korean press and community reports through 2025, neither venue having an official page left to check. Etiquette and the sikhye-and-egg custom are from the Korea Tourism Organization’s English features on jjimjilbang culture. No scrub price is given because each scrubber sets their own.