Hilda is a friendly little swimmer who attends an all-girls swimming boarding school. She always wears a purple rashie with flowers on it, violet togs with hearts on them, a pair of pink swimming goggles, a pair of indigo rubber diving gloves, a fuchsia swimming cap with flowers on it and a pair of mauve fins. She loves to swim, play, splash and hold her breath in the water. She has eleven other young female swimmers in her class, five of whom she's roommates with.