A tiger cruise is an American naval voyage that allows civilians to accompany a sea-going United States Navy vessel.
[1] The voyage allows friends and family of deployed sailors and Marines to spend time aboard a sea-going vessel to learn about the ship's day-to-day operations.
[2] Civilians are sponsored by a Navy sailor or marine, who accompanies them on the cruise.
The story tells of the events aboard the ship before, during, and after the September 11 attacks.
Constellation actually was underway to Naval Air Station North Island with a number of tigers on board that day.