Yesterday, I went to a Korean sauna that is close to our apartment. Korean saunas are very interesting to say the least. You pay your 5,000 won (~$5 U.S) and get two small towels. The sauna is separated into male and female saunas, each on a different floor. You walk in the door, and a shoe room clues you in to take off whatever your feet walked in with and proceed into the "locker room" area.
Then, you discover the naked truth about Korean saunas. Very soon you realize that you also will need to take off whatever else you walked in with. Yes, saunas are nude. This is especially awkward for Americans ("waygooks") because white people are gawked at everywhere. We are a small commodity in Asia, and so you always find yourself as one of the centers of attention at any public place. Thus, the Korean women, ranging in age from teen to ancient, glue their eyes to you the entire time you're there. As a person who changed into her swimsuit in a bathroom stall rather than in the locker room at public pools, this is a little unnerving. Especially since Koreans are much tinier and boy-shaped, as well as less "groomed," you know you stand out if you are more than 100 pounds, have larger than an A-sized chest and perform standard American grooming. But, when in Rome (or Korea) ...
Overall, the sauna experience is an enjoyable one, once you get past the lingering eyes and overhearing Korean gossip that you know is partially about you. The hot baths and steam rooms, as well as scrubbing and exfoliating to the point of baby butt skin, make the sauna worth it. No wonder Koreans have very clear, well-kept skin.