This is directly from the Yahoo! Finance article:
2. Green Valley, Ariz.
The Santa Rita Mountains in the Sonoran Desert serve as a backdrop for Quail Creek Golf Course in Green Valley, …
OVER 50: 92%
Another massive Arizona retirement community, Green Valley has a network of 13 recreation facilities and satellite centers. Members enjoy swimming pools, outdoor grilling areas, fitness rooms, tennis courts, shuffleboard, and a long list of additional amenities. Residents looking for other forms of entertainment can travel to theaters and casinos in Tucson, about a 40-minute drive away.
See the entire article here: http://finance.yahoo.com/news/america-s-most-popular-places-to-retire-200205454.html