Shallow, firm, calm Wellfleet Harbor has grown famed oysters for centuries. Today, most Wellfleets are kept in bags and staked in the shallows, far enough offshore that the tourists won’t get into them. (Though with a permit, you can still harvest your own.) In flavor, Wellfleets resemble Malpeques in their light body and clean finish, but they are even saltier. They scream out for a pint of Sam Adams Lager and some sandy dunes to enjoy them on.