tahoon air walk is worth a look , a suspension cable bridge in over the top of the tree tops of the tarkine rain forest . thats @ geevston
you have wine glass bay & bay of fires on west coast , if u want a beach .
stanley has the nut , where u take a chair lift to the top and a trawler port .
holy bank flying fox - north of launceston .
gunns plains caves kids love , mole creek wild life park if you want to see a devil , theres the riana deer farm near burnie .
40 deg south Salmon Farm @ meander , Zeehan has the Abt rail way , depends on which way your going as thats the west coast and quiet a drive .

on the north west coast there a hands on work farms like Anvers Chocolate at latrobe ( 10 mins from dev ) , Ashgrove Cheese @ sassafrass ( 20 mins from dev on high way ) , theres a wisky distellery at burnie ,

The Meander Dam is a Nice place to stop , one of the biggest man made hydro dams in the southern hempsire opened last year , has camping and bbq facilities thats about 25 mins out of Deloraine .

theres some suggestions for you . hope that helps