Meet at the trail head of Sawyer Camp Trail Park at Crystal Springs Reservoir To Sawyer Park Trail South Entrance in San Mateo - From I-280 (north or south) take Black Mountain Road/Hayne Road Exit. Go west to Skyline Blvd., then south on Skyline one mile to trail entrance at the junction of Skyline Blvd. and Crystal Springs Road. Park on the shoulder of the road but be careful to note the "parking signs" and not to park where it is not allowed. Bathrooms are available. Water is a maybe. Better to bring your own. The best thing about this site is that each 1/2 mile is marked.