Good point there, although I don't know how fast 6 knots is.
Remember that although manatees can travel up to 20mph in short burst, they normally only travel at around 3-5mph. So I hope you look out for manatees.
Another important fact is that no manatee has ever been hit by a train. This makes trains awesome.
Its possible that a flying manatee may have hit a train, when the Labour Day hurricane hit the Florida East Coast Railway in 1935. Such was the damage that the long standing rail link to Key West, was abandoned and a road built.
