Georgia was once a leader in the oyster canning business, but the last cannery closed in the 1960s. In decades since, the local bivalves had a reputation as too wild, too muddy and too much work, so they didn't show up on a lot of menus. In the past few years, however, a group of people attuned to the estuaries of Glynn, Camden, Liberty and McIntosh counties have helped revive the Georgia oyster — through farming. Their stories are the center of André Gallant's A High Low Tide: The Revival of a Southern Oyster .