Dolphin Dreaming (Ella Diaries, #24)

Warning: You are about to read my utterly biggest secrets. Can I trust you? OK then. I’m Ella, and this is my diary. Ella dreams that one day she could see a dolphin in the wild. And when she and Zoe meet Mila, Ella's dream might come true! But their holiday at misty point isn't all ice-creams and boogieboarding. Ella and Zoe make a terrible discovery!