Napa and Sonoma Wine Country Tour. Escape to California’s famous wine country on this full-day tour from San Francisco! Taste regional varietals at three different wineries in Napa and Sonoma, including both big-name and family-run estates. Learn about the winemaking process during guided tours of vineyards and barrel rooms, and savor the area’s gourmet culture with a stop for lunch in charming Yountville. Book and Save 14%: Napa and Sonoma Wine Country Tour.