As you walk along the fifth floor corridor and pass by a statue of a man with his gloves on the wrong hands, you see a series of identical-looking doors. The fourth door to the left of the statue looks no different from the rest. However, those that try it will find that they cannot open the door. Even a simple Alohomora will not make the door budge. It would be best to forget about this door and carry on with the rest of your day ... unless you know the password, of course.

Only prefects and Quidditch captains know the password (Charmin) to get this door to creak open. Once the special words are whispered, the door will open to reveal a shiny marble-floored bathroom. Toilet stalls and a shelf containing towels and swimwear take up one side of the room whereas the other contains a set of couches, a coffee table, and a wizarding wireless. However, that isn't what most students who have access to this room care about. Many often find themselves heading straight for the enormous, swimming pool-like tub in the centre of the room with every ambition of going for a nice swim. The tub, though large, fills up remarkably fast due to the hundred taps surrounding it. If one plans on staying here for a while, they might as well add in some bubbles and relax.

Don't mind the portrait of the mermaid -- she just likes showing off and flirting with the boys.