Fjord is a long, narrow inlet of the sea with steep sides or cliffs. It often stretches far inland from the coast. Fjords usually have deep water and are surrounded by high land. The sides can be rocky and rise sharply from the water.

Fjords are found mainly in regions such as Norway, Greenland, Canada, and New Zealand. They formed during past ice ages when glaciers shaped the land. Fjords contain marine ecosystems and may have nearby towns or villages. They are part of coastal landscapes in these regions.