Series
Where to watch H2O: Just Add Water
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 contact with water.
Availability checked 2026-08-27. US only, powered by JustWatch via TMDB. Provider links open that service’s own search — our source supplies one link per title, not per provider, so these are searches rather than deep links.
On: Dove · Netflix · Prime Video
Cast
- Phoebe TonkinCleo Sertori
- Cariba HeineRikki Chadwick
- Angus McLarenLewis McCartney
- Burgess AbernethyZane Bennett
- Claire HoltEmma Gilbert
- Indiana EvansIsabel "Bella" Hartley