"Perfect Day Mexico is strategically located to deliver exceptional vacation experiences in both the Eastern and Western Caribbean and supports our ambition that every guest on the Royal Caribbean brand will have a Perfect Day on their Caribbean itinerary," the CEO said.

The popular cruise line is betting big on a major change that has worked well for its key rival, Royal Caribbean.

Perfect Day Mexico will have all the highlights from the Perfect Day at CocoCay in an area twice as large, although it is unclear how much of the land will be developed.

Booking a cruise is as much art as science. Prices change regularly, cruise ships sell out, and it's especially challenging when family and friends want to book more than one room on the same cruise.