The following paper is to record certain prehistoric remains in an area already famous for the seventh-century oratory of St. Pieran. Several years ago I commenced a rough survey of the whole district and discovered (within an approximately twelve-mile radius) occupation sites yielding relics of Mesolithic facies and Iron Age and Medieval antiquities. Most of the remains are associated with the extensive tracts of blown sands that lie behind and on either side of the bays of Holywell and Perran. It was the widespread surface occurrence of potsherds and kitchen-midden material within the area that pointed to the possible existence of the habitational sites lying beneath them. Accordingly I dug trial trenches at several widely separated positions, and nearly all these exposed remains of shallow shell-middens.