I'm intrigued by them but have never visited one. I've always assumed they are primarily for married couples. Is this not the case? Would it be weird for someone to go to one with the intention of watching others having sex, without feeling obliged to participate? Also, this is the part I am most curious about. After you go inside, is there a door you go through where the action happens, so to speak? Is it just a group of people having what essentially amounts to a mass orgy in a large room, or are there multiple rooms? Can only imagine the humidity and smell, which would presumably be quite prominent if there are multiple people shagging in an enclosed area.