There was no existing phrase I found which describes spectacle of a flotilla of cruise ships leaving port. I choose to borrow the term "Elephant Walk" which the U.S. Air Force uses to describe taxing entire airwings of planes all at once down a runway. The purpose being to demonstrate readiness and such. The sight, like that of Elephants walking in a row in circus' the term comes from, reminds me a lot of cruise ships leaving port. This video came from Independence of the Seas and we see the mighty Oasis of the Seas departing Port Everglades shortly before it made it's own walk up the channel. It makes for great lunch-time viewing.