When the cool San Francisco fog is putting a damper on your warm summer days, the time is just right for a trip into Wine Country — and nothing says summer like a bright, sunny day of sipping rosé and swirling soft pinots against a vineyard-painted backdrop. So pack up some friends and epicurean accessories and head to these top tasting rooms throughout Napa Valley and Sonoma County for the perfect picnic (they’ll provide the wine).

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