This desert wonderland, the world's largest city park (almost 17,000 acres), offers a wilderness of mountain-desert trails for hikers, bikers, and horseback riders—and a great place to view sunsets. The Environmental Center has a model of the park as well as displays detailing its history, from the time of the ancient Hohokam people to gold seekers. Roads climb past picnic ramadas constructed by the Civilian Conservation Corps, winding through desert flora to the trailheads. Look for ancient petroglyphs, try to spot a desert cottontail rabbit or chuckwalla lizard, or simply stroll among the desert vegetation. Maps of all scenic drives as well as hiking, mountain biking, and horseback trails are available at the Gatehouse Entrance just inside the park boundary.