Lake Eyre in South Australia state is actually two lakes. Larger Eyre North is about 120 kilometers and a width of 70 km. It is the largest lake in Australia. Lower Eyre South is a length of 50 km and a width of 30 km. Lakes are connected by a narrow channel Goyder.

The size of the surface of Lake Eyre varies quite considerably – from 8030 to 15 thousand. km ², but its average area puts them on the 19th place among the largest lakes in the world. It is also situated the lowest among the 23 largest lakes in the world – lies 12 m below sea level.

Strange thing is that the lake rarely fills with water. Precipitation in this part of Australia do not reach up to 127 mm per year. For most of the year, the lake forms a swampy plain, covered with salt deposits of up to 20 cm. It is believed that the lake fills completely with water twice a century.

Lake Eyre in those infrequent cases when he is filled with water is the largest lake in Australia. It is also the lowest place in Australia (in the depression 15 meters below sea level). At maximum filling an area of ​​about 9.5 thousand. km ².

Lake is located in the desert in central Australia, in the northern part of South Australia. It is located in the Great Basin, artesian, right in the center of a large pool endoreicznego, lake bottom is covered with a characteristic of these systems with a layer of salt. Even in the dry season the lake is a little bit of water, usually in the form of small lakes and large pool of dried bed covering. During the rainy season, the lake is fed by the waters of rivers flowing from north Queensland (Cooper Creek and Warburton). The amount of water in the lake depends also on local rainfall. Small floods (the lake level rise of 1.5 m) occur roughly every three years, large floods (4 m) occur every 10 years. Lake is filled with completely or almost completely several times (about four) per century. Water in small and medium floods evaporates before the end of next year.