Ok, you made me get out mapquest. Been a bit, so blame faulty memory or brain fart.

The section I am talking about is heading west on Sunset Drive from Forest to Asilomar. Mostly between 17 mile drive and Asilomar Ave. There a train overpass, or waterway overpass, you ride under and then there's a bit of a sharp curvy downhill. Beautiful ride, but good and steep. Can't be more exact in placement as map quest does not have contour lines.