The Sonoma Valley Port-works is a hidden gem in the small town of Petaluma, but well worth a visit. They are vintners of award winning ports, after dinner wines and an amazing balsamic vinegar that really must be tried.  

The tasting room is located in the old Foundry Wharf building along the Petaluma River just south of the historic city center of Petaluma, on 2nd Street. Not only can you experience wonderful after-dinner wines, but new creations right out of the barrel! The proprietor Bill is a lovely and knowledgeable gentleman who will guide you through the various tastings.

A perfect way to while away a couple of hours and you won't resist the urge to buy something special to take home. Make sure you also check out their website. Portworks