Channel port is a term used to describe a port or harbor that is used for the transportation of goods and services through a body of water. Dover is a port city in England located on the English Channel, and is the closest port to continental Europe. CALAIS is a port city in France located on the Strait of Dover, and is the closest French port to England. Brest is a port city in France located on the Bay of Biscay, and is the largest port in Brittany.