Calling it a 'road' is massively understating the importance of this incredible region of Victoria. Day-trippers might get to see the Twelve Apostles at midday but for the discerning visitor, sunrise and sunset are the times to visit. An overnight stay on Cape Otway gives you the chance to explore the ancient Gondwanan forests and catch glimpse of the rare carnivorous snail. You can paddle with platypus, kayak with seals or take one of the world-famous walks. There are majestic cliff-top vistas at the far western-end to rival anything you'll see elsewhere and a ground-breaking wildlife rehabilitation centre and accommodation. There are numerous escarpment views to die and in Warrnambool, you can seek time with Emus and Koalas in the depths of a flooded volcano run by the local Aboriginal group Worn Gundij. There's the Flagstaff Hill experience, seasonal whale-watching and an increasingly large number of boutique distilleries and food establishments to keep you occupied. You don't know the Great Ocean Road and its hidden secrets until you've left the road.  

The  Great Ocean Road is worth visiting any time of year but climate is the main factor (see below). Outside the summer season, the area tends to draw fewer crowds, particularly around the more popular sites.