The American invasion of Australia predicted on the back of our weaker dollar has well and truly begun. In June, 47,500 American visitors flocked down under - up nearly 20% on the same time last year. Year on year, figures were up 9% to 576,600 visitors as awareness of the greenback's buying power in Australia grew. CommSec senior economist said further growth was likely, with the Australian dollar tipped to fall to 72 US cents by the end of the year, and drop to 70 by mid-2016. A range of campaigns have targeted the US market in recent years, including Restaurant Australia, which attracted American celebrity chefs Alice Waters and Eric Ripert down under. Talk show hosts Oprah Winfrey and Ellen DeGeneres have also staged high profile trips to Australia since late 2010, and this December, Oprah will return for a speaking tour. Find out more.