Or you can follow the Grizzly Peak Century route:
From Skyline, continue onto Grass Valley and Golf Links Road.
Turn left at the Zoo, climb the access ramp to the zoo and, at the top, turn right down the exit ramp.
Turn right on 106th Street, left on Foothill Blvd. and left on McArthur Blvd.
Turn left on Estudillo and continue onto Lake Chabot Road.
Turn left on Castro Valley Blvd and right on Willbeam Avenue.