A sandspit is a stretch of sand that is connected to the mainland on one end and extends out into the ocean on the other. It forms as wind and waves, travelling at an angle to the shore, move sediment (sand, dirt) down the coast. When the shoreline curves, the sediment is still pushed and deposited in the same direction, forming a bank of sand that... Found on https://www.nps.gov/subjects/islandofthebluedolphins/glossary.htm