Experienced cruisers certainly don't mind age restrictions. Carnival Cruise Line was applauded earlier in the year for making much-needed changes to policies for minors . Additionally, the cruise line has given its adult guests hope that a crucial ban on younger cruisers using hot tubs may be coming in the future.

For now, Carnival Cruise Line guests can still access many areas that won't feature those under the age of 18. However, the cruise line has recently made a change to its Celebration Key destination, providing access to guests 13 years of age and older. It is a bold change and one that is already generating a lot of backlash online, especially from cruisers who booked without even knowing about the adjustment.

Here's a closer look at the rule change and its effective date.

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