Mako Island

Mako Mermaids : Vol 1 (DVD, 2013) for sale online

All the Main Mako Mermaids! by Deafgirl15 on DeviantArt

The Moon Pool, Mako Mermaids Wiki

In the pause I took from watching the show (so I could rant abut Cleo to anyone who'd listen), I went on Google Earth and recognised Mako island from S1E18! : r/JustAddWater

Sliding into moonpool at Mako island

Mako Mermaids (TV Series 2013–2016) - IMDb

Mako Mermaids (Series Two Original Soundtrack) - Album by Mako Mermaids

Mako island H2o mermaids, Mermaid island, Mako mermaids

Mako Mermaids, Season 1

Mako Island (H2O) : r/wonderdraft

Mako Mermaids (by sitishelma on DeviantArt) : r/merfolk