One of the oldest towns within the Southeast, Penola is that the commercial centre of the Coonawarra wine region. The region's first winery was inbuilt 1893. There are now some 20 wineries, most of which are open for sales and tastings. Penola itself may be a quiet town which takes great pride in its history. A heritage walk takes visitors past most of its early buildings, including the restored Sharam's Cottage, which was inbuilt 1850 because the first dwelling in Penola.   Environs: Situated 27 km (17 miles) north of Penola, Bool Lagoon (designated a wetland of international significance by UNESCO), is a crucial refuge for an assortment of native wildlife including quite 150 species of birds. With boardwalks and hides, the park provides a chance to watch at close quarters many of those local and migratory birds.   • Hahndorf   Population: 750. Bus Routes: from Adelaide.   Information Center: 41 Main St (08) 8388 1185.   Hahndorf is that the oldest surviving German settlement in Australia. the primary settlers arrived in 1838 aboard the Zebra under the command of Captain Dirk Hahn. Escaping religious persecution in their homeland, they settled within the Adelaide Hills and established Hahndorf (Hahn's Village), a German-style town.   The tree-lined main street has many samples of classic German architecture, like houses with fachwerk timber framing filled in with wattle and daub, or brick. Visitors can enjoy the town's historic atmosphere by taking a horsedrawn carriage tour.   Just outside Hahndorf is 'The Cedars', the previous home of South Australia's best-known landscape artist, the late Sir Hans Heysen. Both his home and his studio are hospitable the general public . South of the town is Nixon's Mill, a stone mill inbuilt 1842.   • Birdwood   Population: 600.   Information Center: National Motor Museum, Shannon St (08) 8568 5577.   Nestled within the Adelaide Hills is that the quiet little town of Birdwood. within the 1850s, wheat was milled within the town and therefore the old wheat mill now houses Birdwood's most famous asset: the country's largest collection of vintage, veteran and classic motor cars, trucks and motorbikes. The National Motor Museum has quite 300 on display and is taken into account to be one among the simplest collections of its kind within the world.