If you go to the Caribbean and stay way from beaches you probably won't see any lizards.
I never saw any in the shopping areas of St. Thomas or Grand Cayman for example.
Carnival Liberty New Year's Eve 2007
Liberty of the Seas 5/2008+11/2009
Allure 1/16/ 2011
Independence of the Seas 12/29/2013
Booked Allure of the Seas....12/27/2015