Sirena, Nixie and Lyla are part of a mermaid pod, which lives in the waters of Mako Island. It is their job to protect the Moon Pool and guard it from trespassers. But on the night of a full moon, the mischievous mermaid girls neglect their duties. Sixteen-year-old land-dweller Zac enters the Moon Pool and is given a fish-like tail and amazing powers.
Series Fun Facts
- Lucy Fry (Lyla) loves playing a supernatural being. In this series she plays a mermaid, in Lightning Point (2011) she plays an alien and in Vampire Academy (2014) she plays a vampire.
- The Spin-Off series to H2O: Just Add Water.
- In the series finale of H2O: Just Add Water (AU), at the graduation ceremony, right before they call Bella onto the stage, they call forth Lucy Fry (played by Lucy Fry).