When I was running my bike tour company, we operated a hilly tour in the region north of San Francisco.

It could be done as a credit card tour. Here's the daily itinerary:

Stage 1: Mill Valley-Occidental (63 mi., 4100')
Stage 2: Occidental-Timber Cove-Occidental ( 61 mi., 5500')
Stage 3: Occidental-Boonville (67 mi., 4200')
Stage 4: Boonville-Ukiah-Boonville (78 mi., 7100')
Stage 5: Boonville-Sea Ranch (54 mi., 5600')
Stage 6: Sea Ranch-Bodega Bay (69 mi., 6900')
Stage 7: Bodega Bay-Mill Valley (68 mi., 6100')
Stage 8: Mill Valley-Marin Headlands-Mill Valley (24 mi., 1900)

If anyone wants the routes, let me know.