16. How a spit is formed… http://www.school-portal.co.uk/GroupDownloadFile.asp?file=21605 Spits are created through the process of deposition. A spit is an extended stretch of beach material that projects out to sea and is joined to the mainland at one end. Spits are commonly found where there is a prevailing wind and where there is longshore drift. An example of a spit is Spurn Head , found along the Holderness Coast in Humberside.