1. Decide why you're going. Australia is roughly the size of the United States -- there's no point in trying to see it all unless you have virtually unlimited time and money. Some tours will hit several high points, which can help you decide what to visit next, but you're better off using guidebooks, the Internet and the experiences of other travelers to help you choose your own must-sees and must-dos. Lovers of cosmopolitan urban life and beautiful-people beaches will adore Sydney; hardcore divers will head for the Great Barrier Reef; families may prefer wildlife excursions.
2. Decide when to go. Many Northern Hemisphere residents enjoy swapping seasons when they visit Australia -- partying on the beach at New Year's, or climbing cool mountains in August. The further south you are, the cooler the weather. Most Aussies take their vacations in the month starting with Christmas, so you're better off avoiding this time.
3. Make a budget. When browsing local sites, be aware that the Australian dollar is worth somewhat less than the American one, so prices may be more reasonable than they look.
3. Book your journey. Since the official language is English, it's relatively easy to arrange your own journey if you're feeling adventurous and prefer to go on your own. "Campervans" may be rented; be careful to follow local regulations about where and when you can camp. Be aware that Australians drive on the left, as in England, and many locations involve long and somewhat hazardous roads. For those who'd rather let others handle the details, there are any number of group tours.
4. Get your documents in order. Be sure each traveler has a valid passport. You'll also need to apply for an Electronic Travel Authority from the Australian Department of Immigration. You can do this online at http://www.eta.immi.gov.au/ Be sure to apply at least two weeks before your departure. Check to see whether your health insurance covers you on your journey.
5. Start gathering the things you'll need to take with you. Remember that Australia has high rates of skin cancer. Bring protective clothing (hats, beach cover-ups) and either bring or plan to buy sunscreen. The plane journey may be longer than the ones you're used to; plan to bring what you'll need for the ride in your carry-on bag, including ways to amuse yourself and your kids for the long hours in the sky. Make a list of any medications you're bringing; you'll need to declare them at Customs.
6. Get familiar with some of the customs and phrases you'll encounter among the Australians. For instance, tipping is virtually unknown in Australia, while women may as well get used to being greeted with "G'day, luv" -- it's generally meant as a pleasant conversational opening. For more Australian slang, see this list of words.
7. If you go shopping, know what you're looking for. Most first-time visitors bring home boomerangs and aboriginal art of dubious quality. If you get a chance to leave the tourist track for a little bit, look for opals -- most of the world's opals are mined in Australia -- wine, and woolen goods.
8. Australia is rich in unexpectedly beautiful sights, friendly people, and fascinating experiences. Enjoy them! Then come back to share your experiences with your fellow Eons members.