This is part three of a three-stage break-down of the "Orr Springs 600" permanent (RUSA permanent #2194, based on RUSA brevet #1513). The three-stage option allows riders to enjoy the course at a more moderate pace, with overnight rest stops on the Mendocino coast and along the shore of Clear Lake. Stage 3 connects Clear Lake to San Francisco. Highlights include Cobb Mountain (the highest point of the 600km loop), a dirt climb up Mt. St. Helena,and miles of bucolic Marin farmland back to San Francisco.