Last updated:12 July 2023
Australia's oceans and seas include those off the mainland and its offshore territories in the Pacific, Southern and Indian Oceans as well as the Timor, Tasman and Coral Seas.
The Australian continent is almost as long as it is wide.
Australia is the planet's sixth largest country after Russia, Canada, China, the USA, and Brazil.
Officially, there is no centre of Australia, but over time and with ingenuity, several methods for calculating the centre of the mainland have been developed.
The positions of the borders are mostly familiar. The more unusual being the one border which is entirely surrounded by a state.
Australia is a land of extremes with temperatures ranging from highs of 40°C in the central desert regions to below freezing in the higher regions of the country's southeast.