Crystal Springs
This is a beautiful run along the reservoir. The path is paved in blacktop and basically flat. It is rumored to be 6 miles to the next entrance/exit (I have never made it that far) so it can be a 12 miler out and back. Each .5 mile is marked.
From San Carlos take 280 north. Exit Bunker Hill Dr. At the end of the off ramp, turn left onto Bunker Hill Dr. At the stop sign, turn right onto Skyline Blvd. Just north of the intersection of Skyline Blvd. and Crystal Springs Rd, on the left, you will find parking spaces. Those fill up quickly, so park anywhere!
