Tasman Island is an island located southeast of the Tasman Islands and in the area of Tasman National Park. As a national park you will see many of beautiful rocks and cliffs away from Hobart Tasmania’s capital city to the southeast. It is well known for its cliffs, seaside and rock formations that are large and beautiful. Tasman Island is an island surrounded by plains. The cliff with the highest point 300 meters (980 feet) above sea level (ASL) and the average height of the plateau 280 meters ASL (920 feet).