Find out more about landforms of coastal deposition.

A discordant coastline is where the geology alternates between strata (bands) of soft and hard rock.

Find out more about discordant coastlines.

Weathering is the breakdown of rock in situ by the action of rainwater, extremes of temperature, and biological activity.

Find out more about weathering.

Ridges are areas of the beach that are raised. The dips are water-filled troughs called runnels.

Ridge and runnels on Harlech beach, North Wales.

Find out more about landforms of coastal deposition.

Weak swash, strong backwash.

Find out more about destructive waves.