Canada.com has a great article on touring area wineries by using the Grapevine Express. Monterey-Salinas Transit's Grapevine Express, also known as Route 24, goes by most of the wineries in Carmel Valley, and an all-day pass is only $6.
If you prefer to do your wine tasting strictly on foot, Day Two of our Midweek Monterey Getaway itinerary presents an afternoon of wine tasting that can be done during a mile-long stroll.
Looking for a romantic Valentine's Day wine tasting adventure? The River Road Wine Trail Valentine's Passport gives participants custom chocolates, souvenir glasses, and access to rare vintages and special discounts at the twelve wineries along the River Road Wine Trail. There will be a grand prize drawing for all passport holders, as well as other prizes along the way. And best of all, there's no tedious application, ugly passport mug shot or customs inspection required!