Florida keys
The Florida keys is a coral cay archipelago in southeast United States.The Florida keys is an island which is near the gulf. The Florida keys is an archipelago landform.
Sea caves
A sea cave,also known as a littoral cave,is a type of cave formed primarly by the wave action of the sea.Sea caves are a coastal and an oceanic landform.A sea cave causes by erosion because the rocks break down then terode all the materials to create sea caves.