7.6 Mako Mermaids: An H2O Adventure Jul. 26, 2013 Mako Mermaids: An H2O Adventure IMDb: 7.6 2013 1213 views Mako Mermaids: An H2O Adventure Season 1-4 Download In English 720p StoryLine: Zac is a teenage boy who decides to camp on Mako Island, unaware ... Action & AdventureComedyDramaSci-Fi & Fantasy