Be careful not to get off on the Black Oak Trail, which is closed to bicycles. There is no water on this trail. This trail is the most tree covered in the park. It is uphill until the Cuyamaca Peak Junction, then downhill most of the way. This will take you out to Highway 79 farther south.
Water is available at Azalea Springs.
Turn right on 79 and follow it to Milk Ranch Road. Follow the instructions for the West Mesa Fire Road to its end at Highway 79. Finish the loop by continuing down 79 to the School Camp. This paved road goes all the way to the top of the park. Stay on the paved road all the way to the top.