In Australia there is not a lot of lakes or rivers. Australia is close to the equator so a lot of people would normally live along the coast/edge of Australia because that is where the water is. They would tend to swim in  the oceans around them to cool off if the days get long and hot. Because Australia is one big island the way for the people to travel to and from Australia is by planes or by boats.On the map I found of Australia 1 inch = 600 miles and in America 1 inch can’t get you very far because of how big it is over here.