San Francisco celebrated the 6th Annual Ghirardelli Square Wine Festival 'Uncorked!' on May 21, 2011, showcasing some of the finest wines with the proceeds going to non-profit Save The Bay.

The event's sponsors included Cellar360, MetroMint, Xfinity, PG&E and the San Francisco Examiner.

Wine tastings and chef demonstrations marked the event.

Some of the participating wineries were Wattle Creek Winery, Sledgehammer, Eristavi Winery, Barefoot Wine & Bubbly, Beringer Vineyards, Dutcher Crossing Winery, Rock Wall Wine Company, The Winery SF, and Martin Ray Winery.

Check out below some of the finest wines available in California:

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