Plot
When three normal teenage girls stumble upon an ancient cave they undergo a transformation that will change their lives forever.
Where to watch H2O: Mermaid Adventures?
H2O: Mermaid Adventures is an animation show featuring Katharina von Keller.
H2O: Mermaid Adventures is currently streaming on Netflix and Netflix basic with Ads.
It is also possible to buy H2O: Mermaid Adventures on Apple TV.