My husband and I are going to SF for our wedding anniversary in March for 4nights/5days Wed-Sun staying at the Omni SF. We plan to rent a car and go to Napa one day.(which day would be best to go?)We don't like to do the tours we like to wing it and see what local recommend to do. We also love to eat seafood, italian, mexican, and good breakfast. What places are romantic, too?