The Napa Valley is located about an hour north of San Francisco. The Valley is 30 miles long and ranges from 1 to 5 miles in width. This is one of the top wine producing regions of the world and...
I know of one Hidden Valley resort and it is located in Canada. There may be others, but the one I know for sure is in Canada. You can have family gatherings there, I think it's a recreational place.
Wineries use wine caves for aging the wine. You will normally find barrels of wines in the wine caves. The temperature is naturally ideal for storing the wine while it is being aged. Some wineries...