It is the Panama Canal - with this oddity about the canal traffic - East to West travel moves West to East!
Also Man-made is the Arctic North West Passage.
northwest passage
The Northwest Passage.
Drake Passage.
Drake Passage.
The Panama Canal was the waterway dug to connect Atlantic and Pacific Oceans.
The manmade waterway that connects the Atlantic and the Pacific oceans is the Panama Canal.
It is a waterway connecting the Atlantic and the Pacific ocean where most vessels passed.
panama canal
the connection
northwest passage
The Northwest Passage is the name that European explorers gave to a theoretical waterway that would pass through the Americas and connect the Atlantic to the Pacific Oceans. However, there is no "Northwest Passage." However, the Pacific is directly connected to the Atlantic between South America and Antarctica, as well as through the Strait of Magellan. Today, however, ships often travel between the Atlantic and Pacific Oceans via the Panama Canal, a man-made waterway across the nation of Panama in Central America.
The Panama Canal.