Abstract
On Magilligan Strand the formation of an unusual form of rhythmic shoreline ‐ termed a stationary sand wave ‐ has had a profound effect on erosion rates of the dune cliffs. The sand wave has expanded laterally to c. 1200 m since its formation in 1968/69, but its centre has remained in one place. Examination of maps, charts and photographs suggests that similar features have formed in the past, but reasons for their eventual decay can only be speculated upon.