Legal Sea Foods. Try the “Oysters Legal”— baked with spinach, cheese and crumbs—or order the fried oysters with cassia salt and seaweed salad. Head to the bar for dollar oysters Monday through Thursday from 3–6 p.m.

Summer Shack (pictured). The Summer Shack’s uniquely designed raw bar case can hold up to 4,000 shellfish—meaning they’re not likely to run out of your favorite bivalves. Belly up to the bar and choose from the blackboard list of the day’s catch.

Lucca. Wednesdays from 5–7 p.m. are Dollar Oyster Nights at Lucca’s Back Bay location. They’re known to sell out, but if that happens, you can always order the Ostriche: Oysters marinated in a Meyer lemon, cucumber and shallot mignonette.

Skipjack’s Seafood Emporium. Here you’ll find a choice selection of New England oysters on the half-shell, such as Wellfleet, Duxbury and Snow Cove. On Mondays from 3:30 p.m. to close, oysters are buy-one-get-one-free at the bar.

Atlantic Fish Co. The dining room feels a bit like a classic cruise ship at this seafood spot, where the raw bar features oysters from Martha’s Vineyard, Maine and New York.