The Grand Canyon is the most popular natural attraction in Arizona. About 5 million people visit it each year. Almost 1 out of every canyon visitors are from outside of the United States. Of the visitors from the United States it may be surprising to learn that Arizona is not where most of the come from. In fact, more Californians visit Grand Canyon than Arizonans.
The most popular private/man-made attraction is Tempe Town Lake which draws about 2.7 million visitors each year. This two mile long lake was formed when a giant rubber dam was placed in the Salt River. The inflatable dams are designed to be deflated should flooding occur in the Salt River. It takes less than one hour to inflate or deflated the dam system.
Sources: Arizona Department of Tourism, Wikipedia, Town Lake Operations Center.




