The Côte d'Opale is a coastal region in northeastern France, in the departments of Nord and Pas-de-Calais. It extends over 120 kilometres (75 mi) of French coast between the Belgian border and the border with Picardy. This coastline faces the English Channel and the North Sea, and is situated directly opposite the chalk cliffs of southeast England, which at the closest point are only 34 kilometres (21 mi) away.
The Côte d'Opale is composed of many varied landscapes including beaches, dunes, swamps, estuaries and cliffs. The coast is marked by the presence of two large promontories situated between Calais and Boulogne: the Cap Gris Nez (literally "grey nose cape" in English), reaching an elevation of 50 metres (160 ft) above sea level, and the Cap Blanc Nez (literally "white nose cape" in English), which reaches 132 metres (433 ft). These capes are the closest points to England on the entire French coast.