Our national parks contain diverse coastal environments: high-energy rocky shorelines of Acadia National Park in Maine, quiet lagoons within War in the Pacific National Historic Park in Guam, and the white sandy beaches of Gulf Islands National Seashore in Mississippi and Florida.
The coastal zone is one of the most dynamic regions on earth. Think of it, 70% of our planet is covered in water possessing enormous energy! The area where this water interacts with the land has great potential to develop unique and dramatic landforms.
Shorelines can be generally divided into two types, high-relief erosional shorelines and low-relief depositional shorelines.
- Sandy Beaches
- Rocky Beaches
- Beach Ridges - wave deposited ridge running parallel to shoreline
- Wave-Cut Scarps - a steep bank created by wave erosion
- Marine Terraces - a raised beach or 'perched coastline' that has been raised out of the sphere of wave activity