H2o Graduation (2006–2010) watch online HD

Just before the gang's graduation, comet Eva approaches, which they work out is attracted by the moon cave crystals and nearly caused a major catastrophe in Ireland where it was probably diverted by a mermaid centuries ago. They frantically try to work out how, finding not the crystals are the key but the tentacle. At graduation day, Cleo gets the ideal present: Lewis is back.

Claire Holt (Emma Gilbert) never returned for the show's final season or the final episode.

When the gang graduates and the names are being called out, the first name to be called is Lucy Fry. Lucy Fry plays Lyla on the spin-off series Mako Mermaids. What's more, it actually is her in the show. She can briefly be seen sitting back down adjacent to Bella.

Last show of the series.

The characters Cleo and Rikki are the only people to appear in every episode.