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Australians are super friendly and there’s a real culture of travel here, particularly traveling solo. It’s very easy to get around.

“They have a real sense of independence down there,” Schlichter said. “No one’s going to look at you funny if you’re traveling by yourself!”

The sights: Single Travels International recommends the Great Barrier Reef for diving, the Blue Mountains near Sydney for hiking and Banzai Beach for relaxing or surfing. Plus, you can actually climb the Sydney Bridge($120-$300) and the Sydney Opera House is “phenomenal,” Weiler said. You can also take a tour of the outback, Independent Traveler says, including one of these from Gray Line($60-$220). Expedia also recommends a combined tour of the Sydney Aquarium, where you can walk through an underwater walkway, Wildlife World, where you can see koalas and kangaroos, and Sydney Tower ($70).

The cost: Hotel and airfare are up 4.3 percent from last year, Expedia reports, but down 15 percent for long-weekend trips.

Photo: Theo Allofs | Stone | Getty Images