Hi guys, just to share... have booked a trip to Melbourne from the recent NATAS fair!

It will be a free and easy self drive trip with my wife spending 9 days over there. Care to comment on my planned itenery below? Esp for those who have been there before. Like in each town which place is worth visiting! Thanks in advance!
Day 1: Reach Melbourne in the morning, check in hotel and explore Melbourne City
Day 2: Pick up car and drive to Yarra's Valley, go for wine appreciation and explore further
Day 3: Leave Yarra's Valley by late morning and head for Mornington Peninsular. Explore strawberry farm, spa, Arthur's chairlift or Cape Schank lighthouse
Day 4: Leave Mornington, take ferry across to Queenscliff, and head towards great ocean road. Reach Apollo Bay by evening
Day 5: Continue drive down across Cape Otway, 12 apostles and reach Warnambool by evening.
Day 6: Head for Grampians NP, and explore for there for rest of day
Day 7: Leave for Ballarat/Gold mining town and explore for rest of the day.
Day 8: Head back to Melbourne city and do last min shopping.
Day 9: Return car and head back to Singapore