The word tour, derived from the Latin for "circle," describes the shape tour groups create as they surround and attack their "guide," which is French for "fact piñata." Obtain candied information by any means necessary with today's Groupon: for $280, you get seven-hour wine tour for up to five people from Tour2nv (up to a $560 value). Wine-tasting fees are included in the price of this Groupon. If customers choose to go to wineries outside of the guided tour, an average of $20 per person may apply.

Sommelier, area local, and tour guide Sam Parra shares the wisdom of a life immersed in viniculture with visitors to the Napa-Sonoma valley. Tours commence on the doorstep or in the treehouse of the guests' choice in Napa or Sonoma county, and proceed to four wineries within the region and outlying Mendocino. Parra arranges meet-and-greets with winemakers at boutique wineries and hidden gems across the valley, divulging wizened sampling suggestions of cabernets, syrahs, and zinfandels along the way. Although food is not included, a break will be made to purchase comestibles for a picnic lunch, with the day concluding at a restaurant for dinner. Tours may be given in English or Spanish, or via Arnold Schwarzenegger's body double upon request.