At 11,503 feet, the San Gorgonio hike brings you to the highest peak in Southern California. The hike to San Gorgonio is an iconic SoCal hiker rite of passage, and I highly recommend it. There are a few ways to hike to the peak. This hiking guide takes the Vivian Creek trail, which is the quickest way to the summit at 10 hours roundtrip. It’s a tough hike but doable in a day if you train for it.