I will be in San Francisco from Sept. 14-19 and in wine country on the 20th and 21st. I do not want to rush wine country but I would love to start in Napa and drive north on 29 the first day(visiting Yountville, St Helena, etc), cut over to Healdsburg for the night and come back down 101 and do Sonoma the next day. I do want to visit a few wineries but I would rather take in the views, do the russian river valley, stop in small towns than try and cover a ton of wineries..5-7 would be plenty. Is this feasible??? Thanks to everyone in advance.