partially_surrounded_by adjacent to formed as result of ocean sea island rocky reef bar shore tombolo A deposition landform such as a spit or bar which forms a narrow piece of land between an island or offshore rock and a mainland shore, or between two islands or offshore rocks. They usually form because the island causes wave refraction, depositing sand and shingle moved by longshore drift in each direction around the island where the waves meet. Eustatic sea level rise may also contribute to accretion as material is pushed up with rising sea levels. EcoLexicon:tombolo bar https://en.wikipedia.org/wiki/Tombolo island SWEETRealm:Tombolo depositional process