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The Best Episodes of H2O: Just Add Water Season 3

Every episode of H2O: Just Add Water Season 3 ranked from best to worst. Discover the Best Episodes of H2O: Just Add Water Season 3!

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H2O: Just Add Water revolves around three teenage girls facing everyday teen problems with an added twist: they cope with the burden of growing a giant fin and transforming into mermaids whenever they come in

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Episode Rankings

  1. #1 Fan Favorite
    H2O: Just Add Water Season 3 Episode 1 - The Awakening
    7.9/10(200 votes)

    #1 - The Awakening

    S3:E1

    Cleo and Rikki enter their final year of high school. They make friends with a new girl, Bella, and a new boy, Will. However, they encounter a new force on Mako Island that has the power to turn water against the girls.

    Director:Jeffrey Walker
    Writer:Unknown

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  2. H2O: Just Add Water Season 3 Episode 2 - Jungle Hunt
    7.3/10(164 votes)

    #2 - Jungle Hunt

    S3:E2

    With Will finding out about Mako Island, Bella tries to misdirect his search so that he will not discover the Moon Pool. However, Lewis and the girls find out that the Moon Pool is different.

    Director:Jeffrey Walker
    Writer:Unknown

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  3. H2O: Just Add Water Season 3 Episode 3 - Keep Your Enemies Close
    7.3/10(163 votes)

    #3 - Keep Your Enemies Close

    S3:E3

    At the marine park, Cleo seeks a job as a dolphin trainer. Meanwhile, until she and Bella reach an understanding, Rikki fires Nate's band, preventing them from playing in the cafe.

    Director:Jeffrey Walker
    Writer:Unknown

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  4. H2O: Just Add Water Season 3 Episode 4 - Valentines Day
    7.4/10(161 votes)

    #4 - Valentines Day

    S3:E4

    Cleo has to put off Lewis' romance plans in order to help Kim with her crazy love life. Meanwhile, Don meets up with a National Parks Manager, Samantha, and the two decide to date.

    Director:Jeffrey Walker
    Writer:Unknown

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  5. H2O: Just Add Water Season 3 Episode 5 - Big Ideas
    7.4/10(149 votes)

    #5 - Big Ideas

    S3:E5

    To get more interest in the cafe, Zane develops a dirt bike race. However, Rikki finds out that it is a scam. She and Bella decide to team up to teach him a lesson. Meanwhile, Lewis and Cleo find out something interesting about mixing the waters in the Moon Pool

    Director:Jeffrey Walker
    Writer:Unknown

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  6. H2O: Just Add Water Season 3 Episode 6 - Secrets & Lies
    7.5/10(149 votes)

    #6 - Secrets & Lies

    S3:E6

    Bella tries to get close to Will but when Bella goes to his place she sees him with another girl. Meanwhile Lewis tries to test the water from the moon pool but gets caught by his teacher.

    Director:Jeffrey Walker
    Writer:Unknown

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  7. H2O: Just Add Water Season 3 Episode 7 - Happy Families
    7.3/10(147 votes)

    #7 - Happy Families

    S3:E7

    Cleo's family and Sam go on a picnic to the beach, which leads to tension when Cleo refuses to go near the water. Kim abuses the fact that her father is happy in order to get lots of gifts. Will's sister Sophie competes with Bella to get the job Bella wanted at Rikki's Cafe.

    Director:Jeffrey Walker
    Writer:Unknown

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  8. H2O: Just Add Water Season 3 Episode 8 - Kidnapped
    7.7/10(147 votes)

    #8 - Kidnapped

    S3:E8

    During a full moon, the girls stay at Cleo's and Bella is attacked by the water creature. At the same time, Will decides to return to the moon pool after making the connection between his previous encounter with the moon pool waterfall and the timing of the full moon.

    Director:Jeffrey Walker
    Writer:Unknown

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  9. H2O: Just Add Water Season 3 Episode 9 - The Sorcerer's Apprentice
    7.5/10(154 votes)

    #9 - The Sorcerer's Apprentice

    S3:E9

    Cleo starts to experiment on the moon pool water without Lewis' knowledge, but things start going wrong when Cleo's fish Hector gets trapped in the bubble of floating water. Meanwhile, Lewis has to play golf with Cleo's father.

    Director:Jeffrey Walker
    Writer:Unknown

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  10. H2O: Just Add Water Season 3 Episode 10 - Revealed
    7.8/10(155 votes)

    #10 - Revealed

    S3:E10

    After Bella gives Will a shell-like fossil she found while swimming, Will becomes suspicious as the fossil is of a rare kind. Rikki realises how close Will is to finding out their mermaid secret and warns Bella to stay away from Will.

    Director:Jeffrey Walker
    Writer:Unknown

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  11. H2O: Just Add Water Season 3 Episode 11 - Just A Girl At Heart
    7.5/10(153 votes)

    #11 - Just A Girl At Heart

    S3:E11

    Bella helps Will with his free-diving training but when she realises he's more interested in her as a mermaid than a girl, she's hurt. Rikki and Cleo have to improvise when the cafe's first corporate function is actually a children‟s party.

    Director:Jeffrey Walker
    Writer:Unknown

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  12. H2O: Just Add Water Season 3 Episode 12 - Crime & Punishment
    8.0/10(165 votes)

    #12 - Crime & Punishment

    S3:E12

    Rikki receives counterfeit money at the cafe and is held captive by criminals on a boat. Bella and Cleo are forced to reveal the trio's secret to Will so they can rescue Rikki together.

    Director:Jeffrey Walker
    Writer:Unknown

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  13. H2O: Just Add Water Season 3 Episode 13 - To Have & To Hold Back
    8.1/10(163 votes)

    #13 - To Have & To Hold Back

    S3:E13

    Kim attempts to derail Don and Samantha's wedding. Lewis receives an opportunity to study in America. Cleo realises she's got to let Lewis live his own life and let him go overseas.

    Director:Jeffrey Walker
    Writer:Unknown

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  14. H2O: Just Add Water Season 3 Episode 14 - Mermaid Magic
    7.7/10(153 votes)

    #14 - Mermaid Magic

    S3:E14

    Will pushes himself too far when Zane challenges him to prove his skills as a free- diver. The girls discover a unique crystal in the rock from the Moon Pool.

    Director:Unknown
    Writer:Unknown

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  15. H2O: Just Add Water Season 3 Episode 15 - Power Play
    7.1/10(145 votes)

    #15 - Power Play

    S3:E15

    Sophie uses Bella's idea for a fundraising concert and presents it as her own to Rikki to gain publicity for the cafe. Cleo's caught in the crossfire with Kim when Samantha moves in and puts her stamp on the Sertori home.

    Director:Unknown
    Writer:Unknown

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  16. H2O: Just Add Water Season 3 Episode 16 - The Dark Side
    7.6/10(144 votes)

    #16 - The Dark Side

    S3:E16

    Rikki's frustrated by the water attacks and goes to Mako Island on a full moon to confront the strange force in the Moon Pool. With Cleo and Bella delayed, Will pursues her and discovers she's been affected by the experience.

    Director:Unknown
    Writer:Unknown

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  17. H2O: Just Add Water Season 3 Episode 17 - A Magnetic Attraction
    7.3/10(146 votes)

    #17 - A Magnetic Attraction

    S3:E17

    Cleo's introduced to Ryan, a young geophysicist who's working for Samantha. Rikki doesn't react well to Cleo consulting Ryan about the Mako rock and a fracture begins to appear in the trio.

    Director:Unknown
    Writer:Unknown

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  18. H2O: Just Add Water Season 3 Episode 18 - Into The Light
    7.3/10(147 votes)

    #18 - Into The Light

    S3:E18

    Rikki fears Ryan's explorations on Mako Island will uncover their secrets but Cleo and Bella discount her concern. She almost goes too far trying to stop Ryan from discovering the crystals in the Moon Pool.

    Director:Unknown
    Writer:Unknown

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  19. H2O: Just Add Water Season 3 Episode 19 - Breakaway
    7.7/10(147 votes)

    #19 - Breakaway

    S3:E19

    Will competes in the Free-Diving Championships but afterward chooses to break from the sport and shrug off Sophie's influence on his life. Rikki sees Sophie kissing Zane at the event and breaks off their relationship.

    Director:Unknown
    Writer:Unknown

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  20. H2O: Just Add Water Season 3 Episode 20 - Queen For A Day
    7.6/10(149 votes)

    #20 - Queen For A Day

    S3:E20

    Zane installs Sophie as head of staff at the cafe. Bella develops a sneezing allergy that also accidentally triggers her powers. Sophie seizes on the problem and looks to fire Bella and the band.

    Director:Unknown
    Writer:Samantha Strauss

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  21. H2O: Just Add Water Season 3 Episode 21 - The Jewel Thief
    7.5/10(145 votes)

    #21 - The Jewel Thief

    S3:E21

    The girls discover the Mako crystals contain immense energy and need to mount a rescue mission when Zane jealously steals one in an effort to gain Rikki‟s attention.

    Director:Unknown
    Writer:Unknown

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  22. H2O: Just Add Water Season 3 Episode 22 - Mako Masters
    7.7/10(144 votes)

    #22 - Mako Masters

    S3:E22

    The girls sit their final school exams and have to avoid a water attack in public when the full moon rises early. They confront the water force in the Moon Pool and are given a message about Mako Island.

    Director:Unknown
    Writer:Unknown

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  23. H2O: Just Add Water Season 3 Episode 23 - Beach Party
    7.7/10(150 votes)

    #23 - Beach Party

    S3:E23

    Bella's eager to ask Will to the end of year party until she sees him asking Rikki. A big misunderstanding occurs which prompts Will to express his true feelings for Bella. Sophie tries to get Zane to change the name of the cafe.

    Director:Unknown
    Writer:Unknown

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  24. H2O: Just Add Water Season 3 Episode 24 - Too Close For Comfort
    7.3/10(145 votes)

    #24 - Too Close For Comfort

    S3:E24

    Don gets a second job at the Marine Park on the Pirate ship and outshines Cleo, threatening the future of her Dolphin show. Bella and Will find difficulty trying to connect with each others' interests.

    Director:Unknown
    Writer:Unknown

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  25. H2O: Just Add Water Season 3 Episode 25 - A Date With Destiny
    7.8/10(157 votes)

    #25 - A Date With Destiny

    S3:E25

    Cleo discovers a comet is causing fish to flee the waters around Mako Island. The girls find a way to restart the message in the Moon Pool and discover the comet will collide with earth. Sophie meets Ryan and with Zane's help they join forces to remove the crystals from the Moon Pool.

    Director:Unknown
    Writer:Unknown

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Season 3 Ratings Summary

"The Awakening" is the best rated episode of "H2O: Just Add Water" season 3. It scored 7.9/10 based on 200 votes. Directed by Jeffrey Walker and written by Unknown, it aired on 10/26/2009. This episode is rated 0.6 points higher than the second-best, "Jungle Hunt".