I have a client who is taking his wife to Sonoma for 4 days later this week. They are staying at the Fairmont in downtown Sonoma. The last time I was in Sonoma I was with some friends who scheduled private visits. I am looking for recommendations for wineries where they would not need an appointment to stop by and taste. They are wine enthusiasts but not to the level of people on a wine board.
Do you think they are looking for wines to try and perhaps buy or get introduced to that they may not see back at their local wine shop or just casually taste and have fun . If the former they may want to try Sojourn tasting room in downtown Sonoma. They should call for an appt but they will probably really enjoy the wines and the visit is in a very casual setting.
The Fairmont is actually in Boyes Hot Springs, about a 5-10 minute drive from downtown Sonoma.
Some wineries within about a 15 minute drive from the Fairmont that I believe do not need an appointment: Ravenswood, Audelssa/Pangloss, Scribe, Gundlach Bundschu, and Gloria Ferrer.
Another vote for Enkidu. I stopped in there during my last trip about 5 minutes before the door closed and after a bit of polite begging, they did a short tasting for my friend and I. The man we met there was very friendly and down to earth, and the wines were great.
My wife and I visited there a year ago and I was surprised at how much we enjoyed the wines. We tasted 6-7 wines, and the Cinq Cepages, Reserve Merlot, and a number of the Pinots (single vineyard designates and the Reserve) were all quite good. Plus, as you mention, the grounds are beautiful and you can purchase food in the store there (or bring your own) and enjoy a picnic.