H2O: Mermaid Adventures: Season 1
This season started on June 1, 2015. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|---|---|
| 1 | The Secret of Mako Island · 24 min | |
| 2 | Caught in the Net · 24 min | |
| 3 | The White Mermaid · 24 min | |
| 4 | A Stormy Party · 24 min | |
| 5 | Mako Island Hotel · 24 min | |
| 6 | The Mysterious Seaweed · 24 min | |
| 7 | It's in the Bag! · 24 min | |
| 8 | Dolphin City Triangle · 24 min | |
| 9 | Poseidon's Daughter · 24 min | |
| 10 | Dolphin City Mascot · 24 min | |
| 11 | Bad Waves · 24 min | |
| 12 | Jaw-ache! · 24 min | |
| 13 | The Lost Ring · 24 min |
