There isn't a series 4 the creator dicho no series 4 maybe a movie but there's a wonderful spin off series called mako sirenas an h2o adventure and if there was a h2o series four it would have been aired three years hace xD
When I amor mako sirenas I wonder when exactly h2.0 just add water season 4 coming soon on Netflix what when there were going to put the big news about the series about this new mostrar about season 4 just add water I’m really so disappointing absolutely especially our audience new reporters about the new release fecha relationships new on Netflix