S1 E124 min
The Secret of Mako Island
Cleo, Emma and Rikki get stranded on Mako island and fall into a magic pool where their lives change forever.
H2O: Mermaid Adventures
Season 1
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13 episodes · First aired 2015-06-01
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Episodes
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Showing 13 at a time
S1 E224 min
Caught in the Net
Emma competes in a contest, Cleo is stuck babysitting an intern and save an injured sea turtle.
S1 E324 min
The White Mermaid
The girls discover of an ancient mermaid statue and return it but treasure hunters have another idea.
S1 E424 min
A Stormy Party
A storm threatens to wash out a birthday party.
S1 E524 min
Mako Island Hotel
Zane's father plans a luxury resort on Mako Island.
S1 E624 min
The Mysterious Seaweed
Aggressive blue seaweed attacks Emma.
S1 E724 min
It's in the Bag!
Discarded plastic bags pose a threat to Teddy and his friends.
S1 E824 min
Dolphin City Triangle
Atmospheric disturbances result in disastrous consequences.
S1 E924 min
Poseidon's Daughter
Dolphin City is the location for a new movie.
S1 E1024 min
Dolphin City Mascot
Danny gets captured by the Oceanic Center for observation.
S1 E1124 min
Bad Waves
Lewis and the girls must find what's behind mysterious sound waves that are creating havoc.
S1 E1224 min
Jaw-ache!
Berk breaks a tooth and wanders near the beach in pain, causing a panic.
S1 E1324 min
The Lost Ring
Rikki takes matters into her own hands by spying on her dad and his new girlfriend.