A friend and I recently had a lovely picnic up in Marshall at the Hog Island Oyster Company. Here's a picture of a worker hauling off the oyster bed:
For $10, you get a dozen oysters, fresh from the farm bed - does it get much fresher than that?! These are Kumamoto, Atlantic, and Sweetwater oysters.
We also packed other picnic items, including walnut levain from Acme Bread, grapes, green olives, salami and a slab of boucheron, washed down with Sierra Nevada Pale Ale: