The Panama Canal. Two bodies of water are being connected.
The Panama Canal connects the Pacific and Atlantic Ocean.
The Panama Canal is near the Pacific Ocean and the Caribbean Sea.
The Panama Canal connects the Pacific and Atlantic Ocean.
The Pacific and the Atlantic Oceans
The Panama Canal joins bodies of water, it does not separate them. The two bodies in question are The Pacific Ocean and the Caribbean Sea.
Atlantic and Pacific Oceans. ;)
Pacific & Atlantic Ocean
Mexico
A narrow body of water that connects two larger bodies of water is called a strait. A man made strait can also be called a canal, like the Panama Canal.
It is an artificial (man-made) river. Specifically, the primary issue is that it connects two rivers as opposed to two saltwater bodies (like the Panama Canal or Suez Canal).
North Atlantic and the Pacific Ocean