The White Cliffs of Dover, located on the coast of Dover in Kent on the south-east coast of England, facing the coast of France, is one of the UK's most iconic natural landmarks. The cliff's striking white appearance is due to its pure chalk (Chalk) composition, formed millions of years ago by the compression of skeletal remains of tiny marine organisms from the Cretaceous period. The cliff face can be up to 110 meters (350 feet) high and stretches for about 13 kilometers (8 miles) along the coastline. For travellers across the English Channel, especially in wartime, the White Cliffs of Dover have long been a symbol of Britain, representing home, hope and peace.

It is a spectacular group of white cliffs in the Dover area of Kent, England, mainly composed of chalk, hence the name "White Cliffs". Towering above the English Channel, it is one of the most famous natural landmarks in the UK and a symbol of the country. The formation can be traced back to the Cretaceous period, about 100 million years ago, when the Cretaceous layer was deposited from the remains of marine organisms. These sediments gradually hardened under the pressure of geological strata, forming the Cretaceous rocks we see today. The height of the white cliffs can reach 350 feet, and on clear days, they stand out particularly on the sea surface. Not only is it a natural beauty, but it is also an important geological and archaeological site.