This group has been going for just over two years now and we meet on a weekly basis to run German classes and have meetups at the same time.
I moved to Brisbane from NZ with my family 2.5 years ago and have a 3.5 year old daughter Mia and a one year old boy Bernie. They both understand German but Mia speaks English most of the time. Attending the German classes once a week and also speaking German with other kids/mums/dads has certainly helped Mia.
The members of our group live allover Brisbane, some of them are German, others have an interest in Germany or German or they have German husbands/wives. We try to meet centrally, at Roma St Parklands, Southbanketc, to make it easy for everyone to get to a meetup.
Everybody is welcome, we speak both English and German at our meetups so if your German isn't perfect, don't fret and come along :-)
We currently meet Thursdays with the odd Tuesday meetup as well. We also have family events on weekends.