In case you’ve missed this streak of lovely D.C. weather–today aside, of course–it’s been the perfect reminder that spring and summer are here, ushering in the best seasons for outdoor wining and dining. But lo, what more could Mother Nature give us? We’ve already got perfect temperatures and gorgeous sunshine; what could make this season better? The answer, DCers, is the freshest seafood from our local rivers and streams.

Enter Poste Brasserie and its first ever Oysterstock this Sunday, April 20, guaranteed to fill you with the finest local ingredients, beer and wine–all for a good cause.

The first-annual festival kicks off in honor of Earth Day and benefits the Oyster Recovery Partnership, a Maryland-based non-profit that promotes, supports and restores oysters for ecologic and economic purposes. Held on Poste’s gorgeous newly reopened patio, Oysterstock features live music and unlimited seafood, beer and wine. Guests can also expect an oyster-eating contest and a silent auction (for the cause, of course).

With a culinary background spanning the country’s seaboard towns both east and west, Poste’s chef Dennis Marron will delight guests with local ingredients crafted into fun, casual dishes with a gourmet twist. Enjoy plates of oysters on the half shell, grilled oysters, oyster stuffing and oyster stew, as well as  bangers, mac ‘n’ cheese, steamed clams, coleslaw and Border Springs lamb.

As if it couldn’t get any better, beverages from DC Brau, Port City Brewing, Catoctin Creek Distilling and Breaux Vineyards will be flowing freely from 2:00pm until sundown. In case you don’t win the tickets we’re giving away for free, tickets are still available at a charge of $75. With unlimited seafood and brews from your favorite local vendors–and all for a good cause–how could you not? Your Sunday just got better.