Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. It is the largest country in Oceania and the world's sixth-largest country by total area.
Generally, the east coast is the most affordable to travel, the west coast is the most expensive, and the Outback falls somewhere in between. Sydney has become the most expensive city in Australia, followed by Melbourne, Darwin, Brisbane, and then Perth.
Generally, the best months to visit Australia are September and October, when it's often still warm enough to hit the beach in the southern states.
Australia's national currency is Australian dollars (AUD), which comes in denominations of $5, $10, $20, $50 and $100 notes. Coins come in 5, 10, 20 and 50 cent and one and two dollar denominations.
Australia has no less than 1734 public hotspots of free wifi, and that's without counting cafes, restaurants, parks... ... However, be careful when connecting to one of these networks because hackers can easily access your personal information.