Though many visit Signal Hill for its fascinating collection of petroglyphs, few venture beyond these attractions to explore the ecologically rich Cactus Wren and Manville trails. 
The two form an easy 3.95 mile loop through a lush desert scrub community highlighted by mature saguaro and large ironwood and mesquite trees.
It’s worth noting that, despite light use, these trails run close to the park boundary, and hikers will likely experience elements of civilization. Dawn and dusk are ideal times to minimize such factors, and increase your chance of seeing the area’s abundant wildlife. Good views and an easy trail. 36 hikers. Saw 2 Red Tails and 1 American Kestrel
Desert Explorers of RCW 