H2O: Just Add Water (TV Series)

H2O: Just Add Water is an Australian TV series that is about 3 young girls (Emma, Rikki and Cleo) who journey to a mysterious island called Mako Island on the night of a Full Moon and upon their dip into the island's moon pool, they turn into mermaids. Now as half human/half mermaid beings, they have to continue with their normal lives while trying to keep their mermaid part a secret.