Begin your day by taking a guided tour of the iconic Sydney Opera House. Have lunch at the Opera Kitchen with a view of the Harbour. In the afternoon, head to the Sydney Zoo followed by dinner at the nearby Hacienda Sydney bar.
Take a day trip to the Great Barrier Reef to snorkel or take a glass-bottom boat tour to see the marine life. Have lunch at the Reef Magic Cruises platform and explore the underwater observatory. Fly back to Sydney in the evening.
Take a ferry to the Taronga Zoo and spend the day seeing the various animals and attending the shows. Have lunch at one of the many eateries inside the zoo and head to the nearby Luna Park in the evening for a fun-filled night of rides and entertainment.
Take a day trip to the Blue Mountains National Park to experience the scenic beauty of the mountains, waterfalls and take the scenic railway to the forest floor. Have lunch at one of the many eateries inside the park and head back to Sydney for dinner at The Rocks.
Take a day trip to Phillip Island and see the penguin parade at the nature parks. Have lunch at the nearby The Cape Kitchen and take a walk along the Cape Woolamai Trail. Head back to Melbourne for dinner at the Arbory Afloat bar.
Spend the morning at the Melbourne Museum to learn about natural history and culture. Have lunch at the nearby Auction Rooms Cafe and then head to the Eureka Skydeck 88 for a breathtaking view of the city. In the evening, head to the Crown Melbourne for dinner and entertainment.
Spend the day at St. Kilda Beach, take a walk along the pier and have lunch at one of the many nearby cafes. In the afternoon, head to Luna Park for a fun-filled day of rides and games. In the evening, head back to Melbourne CBD for dinner at the Supernormal restaurant.
Consider taking a side trip to the Kangaroo Island Wildlife Park, visiting the Sydney Tower Eye for a panoramic view of the city, and experiencing the scenic beauty of the Byron Bay Lighthouse. Don't forget to try the local cuisine and wines.