Red Sea Panama Canal Suez Canal Rivers Bab al-Mandab Strait Canals South China Sea Taiwan Strait Shipping Straits Mediterranean Sea Bab el-Mandeb Strait Intracoastal Waterways Locks East River Havel-Waterstraße Maritime Transport Shipping Channels Elbe River Bosphorus Strait Strait of Hormuz Navigable Waterways Rio Grande Oakland-Alameda Estuary Lakes English Channel Bab al-Mandab Bab al-Mandeb Strait Shipping Routes Gulf of Oman Islands Seas Chokepoints Bab al-Mandeb strait Persian Gulf Bridges Ports Creek Harbors Strategic Locations Milwaukee River Seine River Dnipro River Inland Waterways Thames River Maritime Navigation