It is on now in 2012
The awakening
i think when h2o season 2 finshes that might when the new one comes out but that's wat i think :()
There is not another new h2o just add water.
it comes on Saturday.
2010
I think h20 just add water series 3 comes out at the end of 2010.
just watch it on youtube
After appearing in both series one and two, McLaren left the show during the third series to begin filming Packed_to_the_Rafters. He reappaears in the last episode of season 3 as a guest star
on October 26 2009
March 8,2011
Yes, "H2O: Just Add Water" concluded after three seasons in 2010. The show followed three teenage girls who turn into mermaids when they come in contact with water.
There is no confirmed release date for "H2O: Just Add Water" season 4. It was reported that the series is not currently in production.