This is the Southern Terminus of the 2,650-mile Pacific Crest Trail on the border to Mexico. To get here, take the bus Route 992 from the San Diego Airport to downtown San Diego. Then, take the "Orange Line" trolley to the El Cajon Transit Center. The "Southeastern Rural Route bus" departs the center only once or twice in the afternoon. The ride to Campo takes around two hours where you can buy some last supplies. The Southern Terminus is just a mile to hike from the bus stop.