Meet at the Chimney Rock trailhead.
From Hwy 101 in Larkspur, take the exit for Sir Francis Drake Blvd west 20.4 miles to Olema. Turn right onto Hwy 1 and go 2 miles. Turn left onto Sir Francis Drake Blvd and go 19 miles (allow about 30 minutes for this segment). Just after you pass the last dairy ranch (Ranch A) and a “V” in the road, go left, the parking lot is at the end.