I checked the Carnival website and I did not see any cruises to Mexico for the the Carnival Glory. The Carnival Inspiration, however, does sail to Mexico and is offering a deal for a four day cruise to Mexico starting at $229.
The Carnival Pride is a cruise ship that made her maiden voyage in 2008 from Long Beach, California to Mexico with the Carnival Cruise Line. This ship is a whopping 963 feet long and is very family oriented.
There are many ways one can book a cruise on Carnival Cruse lines. One can book a cruise on Carnival Cruise lines on at popular on the web sources such as the official Carnival Cruise lines website, Travelocity, and Orbitz.