The coast is where the land and the sea meet. Different types of coastlines depend on the type of rock and the force of the sea waves. The coastline landscape is continuously changing because it is continually being moulded by the sea.
The rocky walls rising up from the sea become eroded by the waves and these result in caves and creeks or inlets.
Fjords are submerged glacier valleys flooded by water and forming deep inlets in the coastline of Scandinavia.
When a sea or a river deposits fine materials along the coast, these deposits form low, sandy beaches.