Phoenix has several good mountain parks and preserves, and this is my favorite. It is easily accessible (via SR-51 and E. Glendale Avenue) and has numerous trails of varying degrees of ease or difficulty, all of which give you great views of the component mountains of the park or of the metropolitan area around it. While Piestewa Peak and its very popular summit trail are part of the preserve, I usually hike and explore the other trails and peaks; these are much less crowded and the hikes are just as scenic. There are several good facilities for picnicking and restrooms are available at the parking areas. And oh yes, there are ample parking spaces here, unlike in most of the other mountain parks of the city.