Jim Jil Bang is a co-ed (clothing required) spa experience found at Century Day and Night Spa. Once you check in, you'll be given proper attire to change into before heading upstairs to start your adventure. Our Jim Jil Bang experience includes 4 hot saunas, an ice room and community nap area with heated floors throughout. It's the perfect way to enjoy a relaxing day with friends or your significant other. Jim Jil Bang is free with your spa admission, but you'll need to make sure to ask for the proper attire when you check in. See you in the spa!