In the U.S. Navy, when a ship crosses the equator a time-honored ceremony takes place. This is an event no sailor ever forgets.
With few exceptions, those who have been inducted into the "Ancient Order of the deep" by Neptunus Rex and his Royal court, count the experience as a highlight of their naval career.Officially recognized by service record entries indicating date, time, latitude and longitude, the crossing of the equator involves elaborate preparation by the "shellbacks" (those who have crossed the equator before) to ensure the "pollywogs" (those who are about to cross the equator for the first time) are properly indoctrinated.
All pollywogs, even the Commanding Officer if he has not crossed before, must participate.
Pollywogs must pay their respect to King Neptune, God of the Seas.
The Shellbacks, having been across before and now are "Sons of Neptune" play the roles of a variety of characters such as King Neptune, Neptune's Queen, Davey Jones, the Royal Baby, the Royal Cop, and various other characters of the moment.