Help with first time trip to Australia from USA.
Hello, I'm looking for travel advice. We (my sister and I) are flying into Sydney June 24. We will have five "free" days. Then we will meet up with my son and his bride (they're also traveling from US) on the 29th, for a few days in Sydney. Then we will be going to Berry ,weekend of July 4th, for wedding reception. My question is : before we meet up with my son in Sydney should my sister and I fly to Melbourne? Should we go to Great Barrier Reef (is it the time of year for that)? What are things that are must sees. We might go to the Opera House & Blue Mountains with my son. But trying see more places. Our trip is June 24-July 6. Flying in and out of Sydney. We're interested in anything and everything. Zoos, museums, shows, walking , foodies, nature, whale watching, snorkel. Thank you!!!!!!