Welcome to the site Billy.
OK: PCH is Pacific Coast Highway. You'll have to fill us all in on what 'ride' you are renting.
We avoid the San Francisco Bay area only because it's very congested...and have sort of 'been there, done that'.
Sure enjoyed going up I-5 from Sacramento to Williams, then catching highway 20 west. Beautiful country. Several campgrounds in the Clear Lake area. Highway 20 eventually gets you to 101. Head north to Willits where you pick up 20 west again, which takes you into Fort Bragg.
One could spend a lifetime just exploring highway 20...