Harris Beach State Park at Brookings, OR but I advise going from south to north on Hwy 101, sometimes the outside cliff edge is scary. But you get 4 lanes, 2 lanes and wide spaces between the redwoods, beautiful. Also, if you plan to see San Fran, we stayed at Novato RV Park, close spaces but reasonable, just go to the ferry at Greenbrea not far and ferry over to the city and ride buses or trolleys.