Devil's Slide hill ... eeek >.<
To all north to south Pacific coast goers, be VERY careful on highway 1 crossing a hill called Devil's Slide before Half Moon Bay. There is absolutely no shoulder, potholes, road constuction, steep curvy road, high traffic, and the road is right on the cliff.
There is another old scenic bike path that crosses the mountain safely, which I didn't know about, but be sure to ask the locals in the town before the hill about the scenic bike path before you head up highway 1.