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Guinirvit Gallery Grave, Plouescat, France

The Guinirvit Gallery Grave is located on the Bay of Kernic near Plouescat, Finistère, Brittany, France. The structure is about 4,500 years old and was used as a collective burial site. It was originally built on dry ground but now it becomes fully submerged during high tide. These structures are known locally as “allée couverte.”

A gallery grave is a type of chambered tomb found in France, most of which date to the late Neolithic period. Dating of some gallery graves is difficult, as the tombs may have been constructed in the Late Neolithic or Early Bronze Age, but reopened and used for burials until the Late Bronze Age.