This is the well-lit bathroom devoted to the Prefects and anyone else who is of a special title, such as Quiditch Captian, Head Girl, or other special positions. Inside is a painting of a pod of dolphins, swimming and playing in the waves of the ocean and chattering on in their series of clicks, sputters, squeaks, and squeals. Each faucet releases a different kind of bubble bath, each of different fragrance, color, and effect on the skin. Such a good thing it is to be able to use this bathroom. Even the stalls are kept better than the regular bathrooms. Of course, a student may only enter if they know the password.
Just next to the Prefect Girls' bathroom is another of equal quality, but set aside for the boys deserving of such a privelegde to use it. There is a swimming pool sized bathtub in the middle, which is capable of all the different bubbles as those in the girls' bathroom. It really looks no different from the girls,' with the exception, of course, of the urinals in the opposite corner, and the portrait of that red-haired mermaid, who sits on a rock, wearing nothing but a seashell bra and gigling at the boys who enter, who often giggle back.