Mako Mermaids: An H2O Adventure (2016) - Netflix

This "H2O" sequel follows Zac, a boy who accidentally turns into a merman and threatens the existence of three young mermaids who guard Mako Island.

Mako Mermaids: An H2O Adventure (2016) - Netflix

Watch Mako Mermaids: An H2O Adventure

Watch Mako Mermaids: An H2O Adventure

Watch Mako Mermaids: An H2O Adventure

Mako Mermaids: An H₂O Adventure (Series) - TV Tropes

Mako: Island of Secrets: Season 1: Episode 16: Truce, H2O Just Add Water Wiki

Mako Mermaids Season 4: Where To Watch Every Episode

Watch Mako Mermaids: An H2O Adventure

Watch Mako Mermaids: An H2O Adventure

Watch Mako Mermaids: An H2O Adventure

Mako Mermaids Letting Go (TV Episode 2016) - IMDb

Watch Mako Mermaids: An H2O Adventure

Watch Mako Mermaids: An H2O Adventure

Mako: Island of Secrets: Season 3: Episode 11: Lost And Found, H2O Just Add Water Wiki