Natalia de la Cruz Rivera y Santiago, also known as Nat, was swimming neighborhood kids out of their money at the local Boyle Heights pool when her life changed. The L.A. Mermaids performed, emerging out of the water with matching sequined swimsuits, and it was then that synchronized swimming stole her heart. The problem? Her activist mom and professor dad think it's a sport with too much emphasis on looks—on thinness and whiteness. Nat grew up the youngest in a house full of boys, so she knows how to fight for what she wants, using her anger to fuel her. People often underestimate her swimming skills when they see her stomach rolls, but she knows better than to worry about what people think. Sometimes, she feels more like a submarine than a mermaid, but she wonders if she could be both.