help with my plan for a little over a week in Australia

hi all, I am new to this group, hope to get some help from you all.

I will be arriving Mel on a Thursday next year, 1/27/05, I am planning
a day
at the Australian Open on Friday and a day for a little sightseeing in
Mel
on Sat.

From Sunday till Friday the following week, I want to visit a few
places:

Geelong (I went to school there)
Twelve Apostles
Adelaide and Barossa Valley

If I take this route, I would do the Great Ocean Drive and make stops
along
the way

I would love to go to Sydney also but in a week, I doubt it I can
visit all
these places, plus I want to do a driving trip also.

Do you think I can drive from Mel to Adelaide and then fly from
Adelaide to
Sydney and back to Melbourne?
Would it be enough for a week?

How are the beaches along Ocean Drive, anywhere you would recommend
stopping
for a day of relaxation by the beach?

Any help would be appreciated.

Eric
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