The Tasman Peninsula area really starts in the little town of Dunalley, about 45 minutes' drive from Hobart. From Hobart, you head out on the A3 Highway, crossing the Derwent River and continuing on to Sorell. Here, you turn south to join Highway A9, which takes you all the way through Dunalley to Port Arthur Historic Site. The road is mostly two-lane and you travel through open countryside interspersed with eucalypt forests and views over Frederick Henry Bay.