They play is in Hobart Botanic Gardens. Not sure if you will be able to see it as the school season is December and they are saying the public season is in Jan. However Centertainment in the Mall will be able to help!
http://www.rtbg.tas.gov.au/events.html#1 is the website for it.
It is not a council organised event - but iirc it has council support.
The other really nifty thing to do is a Rivulet tour in Hobart (
http://www.hobartcity.com.au/HCC.104...571:pc=PC_641_)