East of San Diego and Alpine near Buckman Springs, the 3,250 acre Lake Morena County Park has a great 20 mile mountain bike course. Because of its location on the east slope of the Laguna Mountains, the park shows characteristics of desert, coastal, and mountain habitats. This chaparral woodland is home to a variety of animals. Bald eagles, mountain lions, rattlesnakes, and many migratory waterfowl can be observed in the remote wilderness.
Since this route shares trails with the Corral Canyon OHV Area, keep an eye out for ATV and dirt bike riders.
To reach the trailhead from San Diego, head east on the US8 towards El Centro. You will travel through El Cajon, Alpine, and Pine Valley. Exit on the "Buckman Springs" Offramp. Turn right at the bottom of the ramp. Go through one stop sign. Turn Left on Buckman Springs road. Travel about four miles and you will see a small USFS ranger station (Cottonwood). Turn right on the first road past the station (Corral Canyon/Lake Morena). You will see a sign for Lake Morena. Travel on the dirt road for about three miles until you see the bottom of Kernan Trail. Park in the dirt along the left side of the road.
Overall, Lake Morena / Corral Canyon is the 89th most popular mountain bike trail of all 132 mountain biking rides in California.