Barrier Island

A barrier island is a long, narrow strip of land that runs parallel to a mainland coast, protected by the ocean or a sea. These islands act as natural shields, absorbing the force of waves, storms, and rising sea levels, thereby safeguarding the inland areas and coastal ecosystems. Typically made of sand or sediment, barrier islands often feature beaches, dunes, and marshes. They are dynamic environments, constantly shifting due to tides, currents, and weather, and support diverse habitats and wildlife. Their presence is crucial for coastline stability and resilience.