The latest way to find out about places to visit, restaurants and bars is to go www.broadsheet.com.au. This online newspaper has busy journalists finding the most exciting places. Recently they went to Bruny Island and had a great time. No wonder, it's a fabulous place and easy to get to by ferry from Wavestation. Just drive to Kettering down to the Mermaid Cafe. The ferry leaves about every hour or hour and a half. Check the timetable at this site.
http://www.brunyisland.net.au/Services/brunyislandferrydetails.htm It's a great way to spend a day and be back on the mainland at your home away from home at Middleton. Wavestation is perfectly positioned to make your trip back to Hobart airport easy.
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See if you can find the blog Island Menu where everything about Tasmania is kept up to date.