Saunas are pretend "health clubs". You are supposed to go in purely for a sauna/steam/jacuzzi etc. followed by a sterile massage from a member of staff. In reality as some of them don’t even have any facilities for even a sauna they are thinly disguised knocking shops, you go in pick a girl from a selection on duty and go to a 'cabin' where you come to an agreement with her as to what services she will provide and how much. You pay a fee at the door and the girl you choose. If you are from England I am surprised you have not heard of this as they are much more common south of the border. They were more widespread here but the police took an interest in them and got most of them closed, except the gay ones. So the only place that still turned a blind eye to them was in Edinburgh, but this changed with the advent of the unified Police Force in Scotland, and they went after those in Edinburgh as well a few months ago closing some, but some remain open, and all seems to have been quiet on that front for now. We can only guess if and when PLOD will resume his interest. You probably won't have problems if you go but forewarned is forearmed. Whatever you get up to Enjoy Enjoy Enjoy.