Radiance of the Seas had the Express walk-off. On our cruise two weeks ago it did not start until 8:30am because of a delay in getting the ship passed by customs and immigration.
You actually signed up for it a couple of nights in advance through a form delivered to your stateroom.
Radiance of the Seas - Nov 2006
Legend of the Seas - Jun 2007
Costa Fortuna - Mar 2008
Legend of the Seas - Oct 2008
Celebrity Constellation - July 2009
MSC Orchestra - Jan 2009
Navigator of the Seas - March 2009
MSC Poesia - November 2009
Jewel of the Seas - June 2010