Valerie is a sweet brown-haired nine-year-old girl who loves swimming. She is part of a swimming club with a set of identical blonde-haired eight-year-old twins named Lola and Luna. All three girls always wear one-piece swimsuits, long-sleeved rashies, long-sleeved togs, diving masks, rubber gloves, swimming caps, flippers and snorkels. They live in an underwater house together.