Yes, it is true.
A friend of DIT found this article and sent it to us.
Seems that "North America is divided into two parts by a single water line" by which you can go from the Pacific to the Atlantic Ocean or visa versa by water.
Now, it is, obviously not as awesome or as navigable as the Panama Canal
and you would have to be a small fish to do the traveling.
But, it does exist.
Check it out
...
