The English Channel (French: La Manche (IPA: ), "the sleeve") is the part of the Atlantic Ocean that separates the island of Great Britain from northern France and joins the North Sea to the Atlantic. It is about 563 km (350 mi) long and at its widest is 240 km (150 mi). The Strait of Dover is the narrowest part of the channel, being only 34 km (21 mi) from Dover to Cap Gris Nez, and is located at the eastern end of the English Channel, where it meets the North Sea.