Look at this map. Napa River flows all the way down amongst the vineyards.
https://www.visitnapavalley.com/wineries/winery-map/
The Napa River runs from St. Helena (right behind Pelosi’s place) and continues down through all of Napa behind all sorts of vineyards it continues down to Moar Strait from there dumps into the San Francisco Bay out to sea. From sea to shining sea. Transport the kids in from the Pacific and move along the Napa River, perhaps? https://www.visitnapavalley.com/wineries/winery-map/