australian vavaction for a 18 yr old from america?

next august i wanna take a trip to australia. would flying from NYC to Brisbane spending a few days on the beach, then flying to Cairns to snorkel/scuba for few days, then flying to sydney and spending the remaining time there be a good vacation?

im open to suggestion on what to do/what order to do it in (no interest in ayers, i wanna stick to the east coast)

thanks

Yes, that’s a good choice for that time of year, but Brisbane itself doesn’t have beaches – you need to head to the nearby Gold Coast. It will be too cold for swimming anyway in Brisbane/Gold Coast, but the Gold Coast has loads of other activities for tourists to do (not so much Brisbane, it’s just a regular city). The Gold Coast has its own airport you can use, or is maybe about an hour and a half’s drive or bus trip from Brisbane.

Make sure you visit the Daintree Rainforest and River as well while you are in Cairns, and allow a day or two when you arrive to get over the jet lag. Don’t try to do your trip in any less than 2 weeks.