世界上第二古老的国家公园没有大门，没有门票，没有垃圾。

For the impression that Australia is in Leah, many people will say that it is vast, sparsely populated, or that it is rare. It is true that Australia ranks sixth in the world, second only to Russia, Canada, China, the United States and Pakistan, two times more than India, and only about twenty million of the population, ranking fifth in the world. The thirteen place, only 1/50 of China, is less than the population of most provinces, so there are many many parks, large and small parks are scattered.There are no restaurants and shops, so they need to take their own drinking water and food, and the garbage needs to be taken away. I go all the way, a piece of waste paper or a film bag is not seen, so there is no possibility of a tea card of 12 tons of garbage in Saline Lake a day.