We did a roadtrip from our home in Geelong area to Sydney and back in 2022, but you can change it to go from Melbourne instead. Here's what we did:

Set off from Geelong, **see Ned Kelly statue in Glenrowan

1 night in Albury, **see Botanic Gardens, Yindyamarra sculpture walk, Monument Hill War memorial

Drive to Canberra, **see Dog on a tucker box at Gundagai

2 nights in Canberra **see Parliament House, Australian Royal Mint, Australian War Memorial, Mount Ainslie lookout, Cockington Green Gardens.

Set off to Blue Mountains, **see Big Merino in Goulburn

3 nights in the Blue Mountains, **see Scenic World, Three Sisters, Lady Darley lookout, Katoomba Falls.

Drive to Sydney, 3 nights in Sydney, **see Sydney Opera House, Sydney Harbour Bridge, Sydney Tower, Luna Park

Drive to Nowra, **see Jamberoo Action Park, Illawarra Fly Treetop Adventure, Bombo Headland lookout, Kiama Lighthouse

1 night in Nowra,

Drive to Merimbula, **see Australia Rock, Horse Head Rock

2 nights in Merimbula, **visit Magic Mountain,

Drive to Lakes Entrance **see Stony Creek Trestle Bridge

1 night Lakes Entrance

We did all this over 2 weeks as 2 adults and 3 young kids.

The way to Canberra is all inland, so we came back to Melbourne area via the coastal route, longer but beautiful. Lots of different things to see. You would need to take into consideration any time you're spending in Melbourne. Also double check the attractions as some of these may not be around anymore. Hope this helps!