Emma, Cleo and Rikki are sixteen year old girls growing up on the sun-drenched beaches of the Gold Coast. Emma is confident and athletic, Cleo is slightly insecure and awkward while Rikki is the aloof and rebellious new girl.
Because of Rikki, the girls find themselves stranded at sea one day, floating towards the mysterious Mako Island. The three girls find themselves exploring the eerie jungle-covered island before becoming trapped in an ancient cavern under a volcano. Discovering an underwater channel, they decide to swim to safety. As they enter the pool, the light from a full moon illuminates the water, creating a mysterious glow.
Emma, Cleo and Rikki get off the island as fast as they can and back to "normal" life. However, the girls discover life is never going to be normal again; ten seconds after they touch water, they turn into mermaids. After further experimentation, they find they have supernatural powers; Emma can freeze water, Rikki can boil water and Cleo can turn a drop of water into a bucketful and mould it into any shape as well as being able to control and manipulate it to her every whim.
The girls enlist the help of their friend Lewis, who considers himself a scientist, and he attempts to discover the secret behind their transformations.
Everyday situations turn tricky as the girls struggle to cope with their new-found powers, which have numerous advantages and disadvantages, while also trying to keep them a secret from everyone else.
Cleo is my fav. but i love the others too =) i hate Charlotte (she's not one of the mermaids) cause sometimes she act so bossy and she stole Lewis from Cleo!!!