Seniors -- often called "pensioners" in Australia -- from other countries don't always qualify for the discounted entry prices to tours, attractions, and events that Australian seniors enjoy, but it is always worth asking. Inquire about discounts when booking hotels, flights, and train or bus tickets. The best ID to bring is something that shows your date of birth or that marks you as an "official" senior, such as a membership card from AARP.
Many reliable agencies and organizations target the 50-plus market. Road Scholar (formerly Elderhostel; tel. 800/454-5768 in the U.S.; www.roadscholar.org) arranges worldwide study programs -- including to Australia -- for those ages 55 and over.
In Australia, pick up a copy of Get Up & Go (www.getupandgo.com.au), the only national travel magazine for the over-50 crowd and the official Seniors Card travel magazine. It's a glossy quarterly, available at most newsstands and has an extensive section called "Destination Australia," which covers a region in each state/territory in every issue.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.