0:45 H2O - just add water Intro 3:16 H2O: Just Add Water - Theme Song w/ Lyrics 0:33 H2O: Mermaid Adventures | Opening Theme - Version 1 (English) (HD) 0:52 H2O: Mermaid Adventures | Theme Song | Netflix After School 2:17 Every Intro Sequence From All H2O Seasons! 0:28 H2O: Mermaid Adventures Theme Song (V1) (Deutsche/German) 2:54 H2O Mermaid Adventures Theme Song 0:28 H2O: Mermaid Adventures Theme Song (V1) (Српски/Serbian) 0:33 H2O: Mermaid Adventures | Opening Theme - Version 2 (English) (HD) 0:47 Season 3 Intro - H2O: Just Add Water