The Great Ocean Road is an Australian National Heritage listed 243-kilometre (151 mi) stretch of road along the south-eastern coast of Australia between the Victorian cities of Torquay and Warrnambool. The road was built by returned soldiers between 1919 and 1932, and is the World's largest war memorial; dedicated to casualties of World War I. It is an important tourist attraction in the region, which winds through varying terrain alongside the coast, and provides access to several prominent landmarks; including the nationally significant Twelve Apostles limestone stack formations.
The Great Ocean Road, officially designated as the B100, begins at Torquay and travels 243 kilometres westward to finish at Allansford near Warrnambool, the largest city along the road. The road is two lane (one in each direction), with the majority covered by an 80 kilometre per hour speed limit.