Southern Tasmania The most populous region of Tasmania , which includes Tasmania 's capital and Australia's second oldest city, Hobart, which sits at the foot of kunanyi / Mount Wellington. Tasmania has one of the world’s most unique histories. Even though it is a relatively young country, this state was the first convict settlement in... Discover the natural wonders and cultural attractions of Australia's only island state, from Cradle Mountain to MONA. Find out the best things to do, see and eat in Hobart, Freycinet, Bruny Island and more. Geography [edit] Tasmania is the smallest of Australia's six states, with an area of 68,401km² (26,410 square miles). It is comparable in size to Ireland or the US state of West Virginia. Tasmania is separated from mainland Australia by the Bass Strait, from New Zealand by the Tasman Sea, and otherwise surrounded by the Southern Ocean. It is located right in the pathway of the notorious "Roaring Forties" winds that encircle the globe. Most of Tasmania 's population is concentrated around the ...