Phoenix, also known as Vally of the Sun, is a fantastic place to find indoor and outdoor fitness activities. The city may be located in the Sonoran Desert but don't be fooled by its western status, it is still a bustling and ever growing metropolis. The city of Phoenix maintains over 200 public parks, including 6 desert mountain parks. For hikers who like to take things easy, there is Papago Park whose sandstone buttes create a beautiful back drop for any fitness outing. More advanced hikers will love the desert trails of Camelback Mountain. You can also join Phoenix's annual National Trail Trek which includes a guided 15.5 mile hike from the easternmost edge of Pima Canyon to the San Juan Lookout. If your idea of fitness fun involves mountain biking, check out the trails in Phoenix's South Mountain Park. Phoenix also offers many different types of gyms and health clubs. Look for national chains like Bally Total Fitness and LA Fitness when searching for gyms in Phoenix.