H2O: Mermaid Adventures is a 2015 animated television series co-produced by Fantasa Animation (China) and ZDF German Television Network in co-production with France Télévisions and Les Cartooneurs Associés, with the participation of Centre National de la Cinematographe and Netflix. It ran between 22 May to 15 July.
The series is an adaptation of H2O: Just Add Water and Mako: Island of Secrets.
