The geographic feature predominantly found in coastal areas that consists of sandy beaches is a coastline. Coastlines are richly diverse ecosystems that serve as vital habitats for various marine and terrestrial species. They often feature beaches that are popular destinations for recreational activities, including swimming, sunbathing, and beach sports. Additionally, coastlines are important for economic activities such as fishing and tourism. The beauty and ecological importance of sandy beaches make them cherished natural assets around the world, contributing significantly to local economies and lifestyle.