Blue Heron Custom Tours and Travel provides private, custom wine tours in and around San Francisco; the Napa Valley; Sonoma, Mendocino, and Monterey Counties; as well as the Sierra Foothills. Each tour is customized to your tastes and interests in wine. Visit boutique wineries in the Alexander, Dry Creek, and Russian River Valleys of Sonoma County. See world famous producers in the Napa Valley. Taste wine at palatial estates or warehouse wineries.