My daughter does ballet classes with Miss Tessa at Marion. There are many locations around SA so check out the website for more information.
We started with Bebe Ballet as you could start at 18 months. My daughter started when she was 2 at Grange. She enjoyed it and we continued for 3 terms. I then needed a break from driving there and back on a Saturday morning so we stopped.
My daughter kept asking to do ballet again and by then a class had started at Marion. We enrolled her and haven't looked back. She started in the twirltime class when she was 3, where I went in with her and helped. She loves dancing with the props and ribbons. The class is great for their age group and really gets the girls involved and happy. She is now in the soloist class where she goes in on her own. Miss Tess and Miss Bianca are great with the kids and make them feel valued and able. It's certainly a highlight of my daughter's week. The concert is also great to watch.
Dance attire can be purchased at a reasonable price through the ballet school.

Approximate cost: $100