If you are traveling to Australia, or anywhere for that matter. It is a good idea to make sure you adequate insurance coverage. Even if you have insurance now check to make sure you have the right amount of coverage for where you are going and what you will be doing.
It is better to do that now then to discover later on that you are not covered for something that may happen on your trip that can leave you in a bind. You may be able to arrange for extra coverage from home or on the Internet.
If you decide to do something different and need additional coverage for your protection, you may also be able to pick up some extra insurance while you are away.