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            H2O: Just Add Water 

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            Three girls become mermaids after a mysterious island transforms them and gives them special powers.
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            3   2   1  
            2010   2009   2008   2007   2006  
            2 wins & 6 nominations. See more awards »



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            Series cast summary:
            Cariba Heine ...  Rikki 78 episodes, 2006-2010
            Phoebe Tonkin ...  Cleo 78 episodes, 2006-2010
            Angus McLaren ...  Lewis 66 episodes, 2006-2010
            Burgess Abernethy ...  Zane 53 episodes, 2006-2010
            Claire Holt ...  Emma 52 episodes, 2006-2008
            Alan David Lee ...  Don Sertori / ... 51 episodes, 2006-2010
            Cleo Massey ...  Kim / ... 40 episodes, 2006-2010
            Jamie Timony Jamie Timony ...  Nate 36 episodes, 2006-2010


            Three ordinary teenage girls discover a moon pool on Mako Island that turns them into extraordinary mermaids with special powers over water on the night of a full moon. They must never look in the moon's eye or there will be side effects for each of them.

            Plot Summary | Add Synopsis


            Do you believe in mermaids?


            Drama | Family | Fantasy


            See all certifications »

            Parents Guide:

            View content advisory »






            Release Date:

            7 July 2006 (Australia) See more »

            Also Known As:

            H2O See more »


            Box Office


            AUD10,000,000 (estimated)
            See more on IMDbPro »

            Company Credits

            Show more on IMDbPro »

            Technical Specs

            Sound Mix:

            Stereo | Dolby Digital



            Aspect Ratio:

            1.78 : 1
            See full technical specs »

            Did You Know?


            Claire Holt (Emma Gilbert) auditioned for a part in The Secret Circle (2011) but didn't get it. Phoebe Tonkin (Cleo Sertori) landed the part of Faye Chamberlain on the show. See more »


            Emma, Rikki, and Cleo (and later Bella) all wish to keep their identities as mermaids secret due to various risks such as being captured for lab experiments or zoo exhibits if the wrong people find out. Yet these characters repeatedly discuss being mermaids and factors related to it, such as Mako Island, in public areas like the cafe where anyone can just walk past and hear them saying that they're mermaids. See more »


            Rikki Chadwick: We'll draw straws and decide which one of us the others will eat.
            Emma Gilbert: That's not funny!
            Rikki Chadwick: I'm relieving the tension.
            Cleo Sertori: You're making it worse.
            See more »


            Referenced in Mako Mermaids: The Legend of Jiao Long (2016) See more »


            I Won't Walk Away
            by Kate Alexa
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            Frequently Asked Questions

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            User Reviews

            The Low Down On H2o just Add Water
            26 January 2007 | by bmh112005See all my reviews

            Hey, i am a 13 year old girl and i absolutely love h2o just add water. Its basically about 3 girls named Cleo,Rikki and Emma. When Cleo gets stuck on a boat, Rikki helps her. Gets the boat going picks up Emma and (with the help of Rikki) Get stuck on a island. While trying to get a phone signal Cleo falls down into a cave and Rikki and Emma go down after her. After they walk for a little bit they find a little pool which if they swim underwater would lead them out to the sea. When they get into water they find that the water starts bubbling and sparkling. They don't think anything of it and swim to safety. The next day the girls realize that they have tuned into mermaids. They decide not to tell anyone because they were scared they would end up in a freak show. Later on they find that they have powers over water. Rikki can boil it, Cleo can morph it and Emma can freeze it. While tyring to keep this secret but not let in ruin the lives Cleo decides to go to a party where Zane (The bad boy) throws her in the water while everybody goes inside Lewis (Cleo friends who she likes and he likes her two)is shocked to see her turn into a mermaid he helps and finds out that Emma and Rikki are mermaids to. I have only seen 6 episodes. Because i missed it on channel ten so i am now watching it on the Disney channel. So if you are looking a the show and thinking is this a good show. i would say to you no... Its a GREAT show. And i would definitely recommend you watch it.

            56 of 78 people found this review helpful.  Was this review helpful to you? | Report this
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