H20 Just Add Water Season 3 (my version)

Epiosdes
The Rebirth: Emma, Rikki and Cleo are about to face their final year at school together. In the gap between their dramatic final battle with Charlotte and the present day, things have changed on the Gold Coast. The JuiceNet cafe has now closed down, and is just a vacant building on the coastline... until rich boy Zane buys it, and persuades Rikki to reopen it with him, renaming the cafe Rikki's in honour of her. Also, some new people have moved to the Gold Coast; talented free-diver Will Benjamin, and a new girl called Bella Hartley, who does Rikki a favour by singing for her on the opening night of the cafe, when Nate's band turn out to be terrible. As it happens, the cafe opens on the night of a full moon, but Rikki and Cleo are confident that they have overcome its effect on them, and believe that they now know everything about Mako Island and its magic. They are wrong. As the moon rises, free-diver Will discovers the underwater entrance to the Moon Pool, and witnesses the full moon's effect on it (luckily, he is not in the pool itself at the time), but that is not all. A strange waterfall begins flowing out of the cave walls, and fires bolts of water in to the Moon Pool, which form in to a bizarre creature made only of water, and Will is attacked by it. The water tentacle beast then races to the cafe, and kidnaps Bella, who is showed to be a mermaid too, dragging her back to Mako Island so it can drow her. The girls saved her and give her a car full of air.

Mermaids Powers
All mermaids have several common abilities. They all have a transforming power, in which they have absolutely no influence, 10 seconds after they come in contact with water. If all water is removed (dried) from the mermaids body before the 10 seconds are up then the mermaid will remain in human form. But if not dried, then the mermaids will grow tails.Every mermaid has a power over water. Cleo Sertori can mold water, Rikki Chadwick can boil water, Emma Gilbert can freeze water, and Bella Hartley can make jelly water. If in the moon pool during a special full moon a mermaid can get a power over weather.

Mermaids have also been thought to be able to breath under water like a fish. Mermaids can stay submerged for long periods of time but they still need to breath air. Mermaids can hold their breath for at least 12 hours before needing to resurface but with more practice a mermaid can stay under for much longer.