Punz watched, amused, as her billowy robes changed into a black-and-yellow wet suit. Although she wasn't the best swimmer in the world, Rapunzel could at least float and doggy paddle. And plus, she was curious to see what the muggle board things could do.

"Professor, do you have any of those swim-cap-thing-a-ma-bobs?" she asked, curling a lock of blonde hair around her finger. "Will our heads be getting wet too?"