Rogue Waves occur when a larger wave appears in a group of smaller waves. In some circumstances these can lead to an exaggerated ‘Spike Wave’, or a crashing wave resembling the Great Wave off Kanagawa by Hokusai. The Draupner wave is another example of a freak wave which occurred in the North Sea in 1995, reaching a height of almost 20m. Mark McAllister at the University of Oxford, sought to recreate the Draupner wave in the FloWave laboratory in Edinburgh to study how such waves form.