I don't have a map for you.<br/><br/>We could say the ship has a shower if you want one. It seems more likely to me that you might have rigged up an improvised shower in the medical bay emergency wash station or cargo hold. The issue with showers aboard a starship is that realistically it would take a tremendous weight of water to shower everyone each day, and in space there aren't many bacteria colonizing the human body. You could set up a shower, or put in an old-fashioned tub, for limited use.<br/><br/>I'm not about to make you track water usage, but to put it in perspective each shower someone takes reduces your days of water rationed by about a month.