Day Trip, San Diego
The Cleveland National Forest is 147,000 acres (with three ranger districts) which offers a wide variety of terrain, wildlife and recreational activities. The forest extends from within five miles of the border with Mexico northward approximately 130 miles to Orange and Riverside counties.
The southernmost Descanso District is noted for the Laguna Mountains and is the most southerly portion of the Pacific Crest Trail.
Palomar (the central district) includes Palomar Mountain and the famed Palomar Observatory with its 200-inch Hale telescope. The district is home to one of the largest stands of rare big-cone Douglas fir in southern California.
The northern district is Trabuco where the Santa Ana Mountains thrust up as open space against an urban sea. The Pine Creek area is known for its wildlife, including deer, mountain lions, coyotes, gray foxes, hawks, owls and reptiles.
Coronado Island is another attractive place to visit. It is located an a peninsula between the San Diego Bay and the ccean, it can be accessed via the San Diego - Coronado Bay Bridge. There is a small charge to cross the bridge. Hotel del Coronado is very attractive looking and it has a nice beach. They also have a big pool (photo), but they did not let me use it. It was already full of people anyway.