Explore the iconic Pacific Crest Trail with REI expert guides! San Diego marks the start of this 2 650 mile hike that spans from Mexico to Canada and includes some of the most beautiful vistas of the Southern California desert and mountains. Hike a segment of the PCT and local trails. Learn more about the Pacific Crest Trail essential hiking skills and resources. Hikes are roughly 4 miles long over moderate terrain. Some hiking experience is necessary. REI operates under permit on the Cleveland National Forest. USDA is an equal opportunity provider employer and lender.