Waterways
Straits and Channels

  Number of
Waterway PortsWaterway Systems
Africa
Mozambique Channel   14 0
Asia
Bosphorus Strait   2 1
Dardanelles Strait   2 1
Strait of Malacca   26 0
Australia
Bass Strait   17 0
Europe
English Channel   82 0
North America
Carquinez Strait   4 1
Davis Strait   16 0
Denmark Strait   10 0
Discovery Passage   4 1
Haro Strait   1 1
Johnstone Strait   3 1
Strait of Georgia   27 1
Strait of Juan de Fuca   6 1
South America
Strait of Magellan   8 0