Come experience a Korean sauna (jjimjilbang) in Seoul. It's conveniently located near the subway station, but the entrance can be a bit difficult to find on the basement floor. Compared to the two newer ones in Busan, the facilities inside show more signs of age and have fewer amenities. However, the advantage is that it's open 24 hours, and there are many individual small spaces to rest and sleep, as well as separate sleeping rooms for men and women. Booking through Klook is really convenient. I decided to go that day, placed my order immediately, and used it right away. I recommend it for those who haven't been to experience it.