16.77 mi route through Devil's Slide and along Hwy 1 (scary) to a bike trail along Half Moon Bay. The route had a total ascent of 828.63 ft. This route burned 966 Cal even though we decided to take Bus Route 17 back to our car. We would have gone further down Half Moon Bay Coastal Trail but the bridge crossing Pilarcitos Creek was closed. It was possible to go around on Hwy 1 or wade through a creek on a parallel horse trail, but we figured it was a sign that we should turn around. Lovely lunch spot at Frenchman's creek. Public restrooms. Picnic Tables.